diff --git a/libkwineffects/CMakeLists.txt b/libkwineffects/CMakeLists.txt
index bec609dc56..9693824c5e 100644
--- a/libkwineffects/CMakeLists.txt
+++ b/libkwineffects/CMakeLists.txt
@@ -17,7 +17,6 @@ set(kwineffects_QT_LIBS
 
 set(kwineffects_KDE_LIBS
     KF5::XmlGui # needed for KShortcutEditor
-    ${KDE4Support_LIBRARIES} # needed for KDebug
 )
 
 set(kwineffects_XLIB_LIBS
diff --git a/libkwineffects/anidata.cpp b/libkwineffects/anidata.cpp
index 0792735636..4fd26b012e 100644
--- a/libkwineffects/anidata.cpp
+++ b/libkwineffects/anidata.cpp
@@ -20,7 +20,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "anidata_p.h"
 
-#include <KDebug>
+#include <QDebug>
 
 QDebug operator<<(QDebug dbg, const KWin::AniData &a)
 {
@@ -80,7 +80,7 @@ static FPx2 fpx2(const QString &s, AnimationEffect::Attribute a)
                                 a == AnimationEffect::Size ||
                                 a == AnimationEffect::Rotation)) ) {
         if (ok)
-            kDebug(1212) << "Invalid value (must not be negative)" << s;
+            qDebug() << "Invalid value (must not be negative)" << s;
         return FPx2();
     }
 
@@ -96,7 +96,7 @@ static FPx2 fpx2(const QString &s, AnimationEffect::Attribute a)
             f2 = f1;
     }
     if ( forced_align && a >= AnimationEffect::NonFloatBase )
-        kDebug(1212) << "Generic Animations, WARNING: had to align second dimension of non-onedimensional attribute" << a;
+        qDebug() << "Generic Animations, WARNING: had to align second dimension of non-onedimensional attribute" << a;
     return FPx2(f1, f2);
 }
 
@@ -122,7 +122,7 @@ AniData::AniData(const QString &str) // format: WindowMask:Attribute:Meta:Durati
     else if (animation.at(1) == QStringLiteral("Size"))         attribute = AnimationEffect::Size;
     else if (animation.at(1) == QStringLiteral("Clip"))         attribute = AnimationEffect::Clip;
     else {
-        kDebug(1212) << "Invalid attribute" << animation.at(1);
+        qDebug() << "Invalid attribute" << animation.at(1);
         return;
     }
 
@@ -131,7 +131,7 @@ AniData::AniData(const QString &str) // format: WindowMask:Attribute:Meta:Durati
     bool ok;
     duration = animation.at(3).toInt(&ok);
     if (!ok || duration < 0) {
-        kDebug(1212) << "Invalid duration" << animation.at(3);
+        qDebug() << "Invalid duration" << animation.at(3);
         duration = 0;
         return;
     }
@@ -145,12 +145,12 @@ AniData::AniData(const QString &str) // format: WindowMask:Attribute:Meta:Durati
         else if (customCurve == Gaussian)
             curve.setCustomType(AnimationEffect::qecGaussian);
         else
-            kDebug(1212) << "Unknown curve type" << customCurve; // remains default, ie. linear
+            qDebug() << "Unknown curve type" << customCurve; // remains default, ie. linear
 
         if (animation.count() > 6) {
             int t = animation.at(6).toInt();
             if (t < 0)
-                kDebug(1212) << "Delay can not be negative" << animation.at(6);
+                qDebug() << "Delay can not be negative" << animation.at(6);
             else
                 time = t;
 
diff --git a/libkwineffects/kwineffects.cpp b/libkwineffects/kwineffects.cpp
index 6cb46efb57..3113d1122e 100644
--- a/libkwineffects/kwineffects.cpp
+++ b/libkwineffects/kwineffects.cpp
@@ -35,7 +35,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <QGraphicsRotation>
 #include <QGraphicsScale>
 
-#include <kdebug.h>
 #include <ksharedconfig.h>
 #include <kconfiggroup.h>
 
diff --git a/libkwineffects/kwinglobals.cpp b/libkwineffects/kwinglobals.cpp
index 7d09084c5d..bd7d2d23db 100644
--- a/libkwineffects/kwinglobals.cpp
+++ b/libkwineffects/kwinglobals.cpp
@@ -24,8 +24,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include <assert.h>
 
-#include <kdebug.h>
-
 #include <X11/Xlib.h>
 #include <X11/extensions/shape.h>
 
diff --git a/libkwineffects/kwinxrenderutils.cpp b/libkwineffects/kwinxrenderutils.cpp
index 41d3f1e3f1..cba2d4c30b 100644
--- a/libkwineffects/kwinxrenderutils.cpp
+++ b/libkwineffects/kwinxrenderutils.cpp
@@ -21,9 +21,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "kwinxrenderutils.h"
 #include "kwinglobals.h"
 
+#include <QDebug>
 #include <QStack>
 #include <QPixmap>
-#include <kdebug.h>
 
 namespace KWin
 {
@@ -99,7 +99,7 @@ static xcb_render_picture_t createPicture(xcb_pixmap_t pix, int depth)
     }
     QHash<int, xcb_render_pictformat_t>::const_iterator it = s_renderFormats.constFind(depth);
     if (it == s_renderFormats.constEnd()) {
-        kWarning(1212) << "Could not find XRender format for depth" << depth;
+        qWarning() << "Could not find XRender format for depth" << depth;
         return XCB_RENDER_PICTURE_NONE;
     }
     xcb_render_picture_t pic = xcb_generate_id(connection());