diff --git a/geometrytip.cpp b/geometrytip.cpp
index ecbceb061f..e8777bac07 100644
--- a/geometrytip.cpp
+++ b/geometrytip.cpp
@@ -27,7 +27,7 @@ namespace KWin
 GeometryTip::GeometryTip( const XSizeHints* xSizeHints, bool save_under ):
     QLabel( 0 )
     {
-    setObjectName( "kwingeometry" );
+    setObjectName( QLatin1String( "kwingeometry" ) );
     setMargin(1);
     setIndent(0);
     setLineWidth(1);
diff --git a/kcmkwin/kwincompositing/main.cpp b/kcmkwin/kwincompositing/main.cpp
index 3952fec6b3..f29cf0f67c 100644
--- a/kcmkwin/kwincompositing/main.cpp
+++ b/kcmkwin/kwincompositing/main.cpp
@@ -56,7 +56,7 @@ ConfirmDialog::ConfirmDialog() :
                      i18n("Confirm Desktop Effects Change"), KTimerDialog::Ok|KTimerDialog::Cancel,
                      KTimerDialog::Cancel)
     {
-    setObjectName( "mainKTimerDialog" );
+    setObjectName( QLatin1String( "mainKTimerDialog" ) );
     setButtonGuiItem( KDialog::Ok, KGuiItem( i18n( "&Accept Configuration" ), "dialog-ok" ));
     setButtonGuiItem( KDialog::Cancel, KGuiItem( i18n( "&Return to Previous Configuration" ), "dialog-cancel" ));
 
diff --git a/kcmkwin/kwindecoration/buttons.cpp b/kcmkwin/kwindecoration/buttons.cpp
index e86a3cff08..5e25a0148a 100644
--- a/kcmkwin/kwindecoration/buttons.cpp
+++ b/kcmkwin/kwindecoration/buttons.cpp
@@ -667,7 +667,7 @@ ButtonPositionWidget::ButtonPositionWidget(QWidget *parent)
 		"between the available item list and the titlebar preview. Similarly, "
 		"drag items within the titlebar preview to re-position them.") );
 	m_buttonSource = new ButtonSource(this);
-    m_buttonSource->setObjectName("button_source");
+    m_buttonSource->setObjectName( QLatin1String("button_source" ));
 
 	layout->addWidget(label);
 	layout->addWidget(m_dropSite);
diff --git a/kcmkwin/kwinoptions/main.cpp b/kcmkwin/kwinoptions/main.cpp
index c0a8fafbb3..5ace6e3e6f 100644
--- a/kcmkwin/kwinoptions/main.cpp
+++ b/kcmkwin/kwinoptions/main.cpp
@@ -77,27 +77,27 @@ KWinOptions::KWinOptions(QWidget *parent, const QVariantList &)
   layout->addWidget(tab);
 
   mFocus = new KFocusConfig(false, mConfig, componentData(), this);
-  mFocus->setObjectName("KWin Focus Config");
+  mFocus->setObjectName( QLatin1String("KWin Focus Config" ));
   tab->addTab(mFocus, i18n("&Focus"));
   connect(mFocus, SIGNAL(changed(bool)), this, SLOT(moduleChanged(bool)));
 
   mTitleBarActions = new KTitleBarActionsConfig(false, mConfig, componentData(), this);
-  mTitleBarActions->setObjectName("KWin TitleBar Actions");
+  mTitleBarActions->setObjectName( QLatin1String("KWin TitleBar Actions" ));
   tab->addTab(mTitleBarActions, i18n("&Titlebar Actions"));
   connect(mTitleBarActions, SIGNAL(changed(bool)), this, SLOT(moduleChanged(bool)));
 
   mWindowActions = new KWindowActionsConfig(false, mConfig, componentData(), this);
-  mWindowActions->setObjectName("KWin Window Actions");
+  mWindowActions->setObjectName( QLatin1String("KWin Window Actions" ));
   tab->addTab(mWindowActions, i18n("Window Actio&ns"));
   connect(mWindowActions, SIGNAL(changed(bool)), this, SLOT(moduleChanged(bool)));
 
   mMoving = new KMovingConfig(false, mConfig, componentData(), this);
-  mMoving->setObjectName("KWin Moving");
+  mMoving->setObjectName( QLatin1String("KWin Moving" ));
   tab->addTab(mMoving, i18n("&Moving"));
   connect(mMoving, SIGNAL(changed(bool)), this, SLOT(moduleChanged(bool)));
 
   mAdvanced = new KAdvancedConfig(false, mConfig, componentData(), this);
-  mAdvanced->setObjectName("KWin Advanced");
+  mAdvanced->setObjectName( QLatin1String("KWin Advanced" ));
   tab->addTab(mAdvanced, i18n("Ad&vanced"));
   connect(mAdvanced, SIGNAL(changed(bool)), this, SLOT(moduleChanged(bool)));
 
@@ -190,12 +190,12 @@ KActionsOptions::KActionsOptions(QWidget *parent, const QVariantList &)
   layout->addWidget(tab);
 
   mTitleBarActions = new KTitleBarActionsConfig(false, mConfig, componentData(), this);
-  mTitleBarActions->setObjectName("KWin TitleBar Actions");
+  mTitleBarActions->setObjectName( QLatin1String("KWin TitleBar Actions" ));
   tab->addTab(mTitleBarActions, i18n("&Titlebar Actions"));
   connect(mTitleBarActions, SIGNAL(changed(bool)), this, SLOT(moduleChanged(bool)));
 
   mWindowActions = new KWindowActionsConfig(false, mConfig, componentData(), this);
-  mWindowActions->setObjectName("KWin Window Actions");
+  mWindowActions->setObjectName( QLatin1String("KWin Window Actions" ));
   tab->addTab(mWindowActions, i18n("Window Actio&ns"));
   connect(mWindowActions, SIGNAL(changed(bool)), this, SLOT(moduleChanged(bool)));
 }
diff --git a/lib/kdecoration.cpp b/lib/kdecoration.cpp
index 5085a86f6e..f685ddb0bc 100644
--- a/lib/kdecoration.cpp
+++ b/lib/kdecoration.cpp
@@ -80,7 +80,7 @@ void KDecoration::createMainWidget( Qt::WFlags flags )
     {
     // FRAME check flags?
     QWidget *w = new QWidget( initialParentWidget(), initialWFlags() | flags );
-    w->setObjectName("decoration widget");
+    w->setObjectName( QLatin1String("decoration widget" ));
     w->setAttribute( Qt::WA_PaintOnScreen );
     if ( options()->showTooltips() )
         w->setAttribute( Qt::WA_AlwaysShowToolTips );