diff --git a/effects/coverswitch/coverswitch_config.ui b/effects/coverswitch/coverswitch_config.ui
index 940c8a1739..982caf6d12 100644
--- a/effects/coverswitch/coverswitch_config.ui
+++ b/effects/coverswitch/coverswitch_config.ui
@@ -147,7 +147,7 @@
           </widget>
          </item>
          <item row="0" column="1">
-          <widget class="KIntSpinBox" name="kcfg_Duration">
+          <widget class="QSpinBox" name="kcfg_Duration">
            <property name="sizePolicy">
             <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
              <horstretch>0</horstretch>
@@ -236,11 +236,6 @@
    <extends>QPushButton</extends>
    <header>kcolorbutton.h</header>
   </customwidget>
-  <customwidget>
-   <class>KIntSpinBox</class>
-   <extends>QSpinBox</extends>
-   <header>knuminput.h</header>
-  </customwidget>
  </customwidgets>
  <resources/>
  <connections>
diff --git a/effects/cube/cube_config.ui b/effects/cube/cube_config.ui
index 731774fe4a..ec79f1c59d 100644
--- a/effects/cube/cube_config.ui
+++ b/effects/cube/cube_config.ui
@@ -132,7 +132,7 @@
            </widget>
           </item>
           <item row="3" column="1">
-           <widget class="KIntSpinBox" name="kcfg_RotationDuration">
+           <widget class="QSpinBox" name="kcfg_RotationDuration">
             <property name="sizePolicy">
              <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
               <horstretch>0</horstretch>
@@ -214,7 +214,7 @@
            </widget>
           </item>
           <item row="1" column="2">
-           <widget class="KIntSpinBox" name="kcfg_OpacitySpin">
+           <widget class="QSpinBox" name="kcfg_OpacitySpin">
             <property name="minimumSize">
              <size>
               <width>75</width>
@@ -497,11 +497,6 @@ otherwise it will remain active</string>
    <extends>QPushButton</extends>
    <header>kcolorbutton.h</header>
   </customwidget>
-  <customwidget>
-   <class>KIntSpinBox</class>
-   <extends>QSpinBox</extends>
-   <header>knuminput.h</header>
-  </customwidget>
   <customwidget>
    <class>KUrlRequester</class>
    <extends>QFrame</extends>
diff --git a/effects/cube/cubeslide_config.ui b/effects/cube/cubeslide_config.ui
index b9582781a1..44acfe9ad0 100644
--- a/effects/cube/cubeslide_config.ui
+++ b/effects/cube/cubeslide_config.ui
@@ -32,7 +32,7 @@
     </spacer>
    </item>
    <item row="0" column="1">
-    <widget class="KIntSpinBox" name="kcfg_RotationDuration">
+    <widget class="QSpinBox" name="kcfg_RotationDuration">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -95,13 +95,6 @@
    </item>
   </layout>
  </widget>
- <customwidgets>
-  <customwidget>
-   <class>KIntSpinBox</class>
-   <extends>QSpinBox</extends>
-   <header>knuminput.h</header>
-  </customwidget>
- </customwidgets>
  <tabstops>
   <tabstop>kcfg_RotationDuration</tabstop>
   <tabstop>kcfg_DontSlidePanels</tabstop>
diff --git a/effects/dashboard/dashboard_config.ui b/effects/dashboard/dashboard_config.ui
index 7e8e07dd09..fd9a19e0c5 100644
--- a/effects/dashboard/dashboard_config.ui
+++ b/effects/dashboard/dashboard_config.ui
@@ -166,7 +166,7 @@
       </spacer>
      </item>
      <item>
-      <widget class="KIntSpinBox" name="kcfg_Duration">
+      <widget class="QSpinBox" name="kcfg_Duration">
        <property name="maximum">
         <number>3000</number>
        </property>
@@ -212,13 +212,6 @@
    </item>
   </layout>
  </widget>
- <customwidgets>
-  <customwidget>
-   <class>KIntSpinBox</class>
-   <extends>QSpinBox</extends>
-   <header>knuminput.h</header>
-  </customwidget>
- </customwidgets>
  <resources/>
  <connections/>
 </ui>
diff --git a/effects/desktopgrid/desktopgrid_config.ui b/effects/desktopgrid/desktopgrid_config.ui
index 18e11ada48..8347d50691 100644
--- a/effects/desktopgrid/desktopgrid_config.ui
+++ b/effects/desktopgrid/desktopgrid_config.ui
@@ -31,7 +31,7 @@
        </widget>
       </item>
       <item row="0" column="1">
-       <widget class="KIntSpinBox" name="kcfg_ZoomDuration">
+       <widget class="QSpinBox" name="kcfg_ZoomDuration">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
           <horstretch>0</horstretch>
@@ -63,7 +63,7 @@
        </widget>
       </item>
       <item row="1" column="1">
-       <widget class="KIntSpinBox" name="kcfg_BorderWidth">
+       <widget class="QSpinBox" name="kcfg_BorderWidth">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
           <horstretch>0</horstretch>
@@ -153,7 +153,7 @@
        </widget>
       </item>
       <item row="4" column="1">
-       <widget class="KIntSpinBox" name="kcfg_CustomLayoutRows">
+       <widget class="QSpinBox" name="kcfg_CustomLayoutRows">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
           <horstretch>0</horstretch>
@@ -224,11 +224,6 @@
    <extends>QComboBox</extends>
    <header>kcombobox.h</header>
   </customwidget>
-  <customwidget>
-   <class>KIntSpinBox</class>
-   <extends>QSpinBox</extends>
-   <header>knuminput.h</header>
-  </customwidget>
   <customwidget>
    <class>KShortcutsEditor</class>
    <extends>QWidget</extends>
diff --git a/effects/diminactive/diminactive_config.ui b/effects/diminactive/diminactive_config.ui
index ab6099a348..569ee65a4d 100644
--- a/effects/diminactive/diminactive_config.ui
+++ b/effects/diminactive/diminactive_config.ui
@@ -72,7 +72,7 @@
     </widget>
    </item>
    <item row="0" column="2">
-    <widget class="KIntSpinBox" name="kcfg_Strength">
+    <widget class="QSpinBox" name="kcfg_Strength">
      <property name="minimum">
       <number>1</number>
      </property>
@@ -99,13 +99,6 @@
    </item>
   </layout>
  </widget>
- <customwidgets>
-  <customwidget>
-   <class>KIntSpinBox</class>
-   <extends>QSpinBox</extends>
-   <header>knuminput.h</header>
-  </customwidget>
- </customwidgets>
  <tabstops>
   <tabstop>kcfg_sliderStrength</tabstop>
   <tabstop>kcfg_Strength</tabstop>
diff --git a/effects/flipswitch/flipswitch_config.ui b/effects/flipswitch/flipswitch_config.ui
index e851ff6c82..02a925f6bc 100644
--- a/effects/flipswitch/flipswitch_config.ui
+++ b/effects/flipswitch/flipswitch_config.ui
@@ -31,7 +31,7 @@
        </widget>
       </item>
       <item row="0" column="1">
-       <widget class="KIntSpinBox" name="kcfg_Duration">
+       <widget class="QSpinBox" name="kcfg_Duration">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
           <horstretch>0</horstretch>
@@ -60,7 +60,7 @@
        </widget>
       </item>
       <item row="1" column="1">
-       <widget class="KIntSpinBox" name="kcfg_Angle">
+       <widget class="QSpinBox" name="kcfg_Angle">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
           <horstretch>0</horstretch>
@@ -223,11 +223,6 @@
   </layout>
  </widget>
  <customwidgets>
-  <customwidget>
-   <class>KIntSpinBox</class>
-   <extends>QSpinBox</extends>
-   <header>knuminput.h</header>
-  </customwidget>
   <customwidget>
    <class>KShortcutsEditor</class>
    <extends>QWidget</extends>
diff --git a/effects/lookingglass/lookingglass_config.ui b/effects/lookingglass/lookingglass_config.ui
index 4cd29bd381..7fec55e9b1 100644
--- a/effects/lookingglass/lookingglass_config.ui
+++ b/effects/lookingglass/lookingglass_config.ui
@@ -32,7 +32,7 @@
     </widget>
    </item>
    <item row="0" column="1">
-    <widget class="KIntSpinBox" name="kcfg_Radius">
+    <widget class="QSpinBox" name="kcfg_Radius">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -47,11 +47,6 @@
   </layout>
  </widget>
  <customwidgets>
-  <customwidget>
-   <class>KIntSpinBox</class>
-   <extends>QSpinBox</extends>
-   <header>knuminput.h</header>
-  </customwidget>
   <customwidget>
    <class>KShortcutsEditor</class>
    <extends>QWidget</extends>
diff --git a/effects/magnifier/magnifier_config.ui b/effects/magnifier/magnifier_config.ui
index 10abf4367b..ea2e1f3ee5 100644
--- a/effects/magnifier/magnifier_config.ui
+++ b/effects/magnifier/magnifier_config.ui
@@ -31,7 +31,7 @@
        </widget>
       </item>
       <item row="0" column="1">
-       <widget class="KIntSpinBox" name="kcfg_Width">
+       <widget class="QSpinBox" name="kcfg_Width">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
           <horstretch>0</horstretch>
@@ -63,7 +63,7 @@
        </widget>
       </item>
       <item row="1" column="1">
-       <widget class="KIntSpinBox" name="kcfg_Height">
+       <widget class="QSpinBox" name="kcfg_Height">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
           <horstretch>0</horstretch>
@@ -94,11 +94,6 @@
   </layout>
  </widget>
  <customwidgets>
-  <customwidget>
-   <class>KIntSpinBox</class>
-   <extends>QSpinBox</extends>
-   <header>knuminput.h</header>
-  </customwidget>
   <customwidget>
    <class>KShortcutsEditor</class>
    <extends>QWidget</extends>
diff --git a/effects/mouseclick/mouseclick_config.ui b/effects/mouseclick/mouseclick_config.ui
index a82156362e..e9c925800b 100644
--- a/effects/mouseclick/mouseclick_config.ui
+++ b/effects/mouseclick/mouseclick_config.ui
@@ -121,7 +121,7 @@
            </widget>
           </item>
           <item row="1" column="1">
-           <widget class="KIntSpinBox" name="kcfg_RingLife">
+           <widget class="QSpinBox" name="kcfg_RingLife">
             <property name="sizePolicy">
              <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
               <horstretch>0</horstretch>
@@ -160,7 +160,7 @@
            </widget>
           </item>
           <item row="2" column="1">
-           <widget class="KIntSpinBox" name="kcfg_RingSize">
+           <widget class="QSpinBox" name="kcfg_RingSize">
             <property name="sizePolicy">
              <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
               <horstretch>0</horstretch>
@@ -275,11 +275,6 @@
    <extends>QWidget</extends>
    <header>kfontrequester.h</header>
   </customwidget>
-  <customwidget>
-   <class>KIntSpinBox</class>
-   <extends>QSpinBox</extends>
-   <header>knuminput.h</header>
-  </customwidget>
   <customwidget>
    <class>KIntNumInput</class>
    <extends>QWidget</extends>
diff --git a/effects/mousemark/mousemark_config.cpp b/effects/mousemark/mousemark_config.cpp
index e686fd2ff7..003362f06a 100644
--- a/effects/mousemark/mousemark_config.cpp
+++ b/effects/mousemark/mousemark_config.cpp
@@ -49,7 +49,7 @@ MouseMarkEffectConfig::MouseMarkEffectConfig(QWidget* parent, const QVariantList
 {
     m_ui = new MouseMarkEffectConfigForm(this);
 
-    m_ui->kcfg_LineWidth->setSuffix(ki18np(" pixel", " pixels"));
+    m_ui->kcfg_LineWidth->setSuffix(ki18np(" pixel", " pixels").toString());
 
     QVBoxLayout* layout = new QVBoxLayout(this);
 
diff --git a/effects/mousemark/mousemark_config.ui b/effects/mousemark/mousemark_config.ui
index 0790ff4661..b86db7e4cd 100644
--- a/effects/mousemark/mousemark_config.ui
+++ b/effects/mousemark/mousemark_config.ui
@@ -31,7 +31,7 @@
        </widget>
       </item>
       <item row="0" column="1">
-       <widget class="KIntSpinBox" name="kcfg_LineWidth">
+       <widget class="QSpinBox" name="kcfg_LineWidth">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
           <horstretch>0</horstretch>
@@ -103,11 +103,6 @@
    <extends>QComboBox</extends>
    <header>kcolorcombo.h</header>
   </customwidget>
-  <customwidget>
-   <class>KIntSpinBox</class>
-   <extends>QSpinBox</extends>
-   <header>knuminput.h</header>
-  </customwidget>
   <customwidget>
    <class>KShortcutsEditor</class>
    <extends>QWidget</extends>
diff --git a/effects/thumbnailaside/thumbnailaside_config.ui b/effects/thumbnailaside/thumbnailaside_config.ui
index 38bfefaeb7..439805c135 100644
--- a/effects/thumbnailaside/thumbnailaside_config.ui
+++ b/effects/thumbnailaside/thumbnailaside_config.ui
@@ -44,7 +44,7 @@
        </widget>
       </item>
       <item row="1" column="1">
-       <widget class="KIntSpinBox" name="kcfg_Spacing">
+       <widget class="QSpinBox" name="kcfg_Spacing">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
           <horstretch>0</horstretch>
@@ -76,7 +76,7 @@
        </widget>
       </item>
       <item row="2" column="1">
-       <widget class="KIntSpinBox" name="kcfg_Opacity">
+       <widget class="QSpinBox" name="kcfg_Opacity">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
           <horstretch>0</horstretch>
@@ -126,11 +126,6 @@
   </layout>
  </widget>
  <customwidgets>
-  <customwidget>
-   <class>KIntSpinBox</class>
-   <extends>QSpinBox</extends>
-   <header>knuminput.h</header>
-  </customwidget>
   <customwidget>
    <class>KShortcutsEditor</class>
    <extends>QWidget</extends>
diff --git a/effects/wobblywindows/wobblywindows_config.ui b/effects/wobblywindows/wobblywindows_config.ui
index 0498a64168..0451021e2b 100644
--- a/effects/wobblywindows/wobblywindows_config.ui
+++ b/effects/wobblywindows/wobblywindows_config.ui
@@ -50,7 +50,7 @@
        </widget>
       </item>
       <item row="0" column="2">
-       <widget class="KIntSpinBox" name="stiffnessSpin">
+       <widget class="QSpinBox" name="stiffnessSpin">
         <property name="minimum">
          <number>1</number>
         </property>
@@ -105,7 +105,7 @@
        </widget>
       </item>
       <item row="1" column="2">
-       <widget class="KIntSpinBox" name="dragSpin">
+       <widget class="QSpinBox" name="dragSpin">
         <property name="minimum">
          <number>50</number>
         </property>
@@ -134,7 +134,7 @@
        </widget>
       </item>
       <item row="2" column="2">
-       <widget class="KIntSpinBox" name="moveFactorSpin">
+       <widget class="QSpinBox" name="moveFactorSpin">
         <property name="minimum">
          <number>1</number>
         </property>
@@ -243,13 +243,6 @@
    </item>
   </layout>
  </widget>
- <customwidgets>
-  <customwidget>
-   <class>KIntSpinBox</class>
-   <extends>QSpinBox</extends>
-   <header>knuminput.h</header>
-  </customwidget>
- </customwidgets>
  <tabstops>
   <tabstop>kcfg_WobblynessLevel</tabstop>
   <tabstop>kcfg_MoveWobble</tabstop>