diff --git a/effects/cube/cube.cpp b/effects/cube/cube.cpp
index 4f640e614b..bacf7de196 100644
--- a/effects/cube/cube.cpp
+++ b/effects/cube/cube.cpp
@@ -1533,7 +1533,7 @@ void CubeEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowP
                     quadSize = 150.0f;
                 else
                     quadSize = 250.0f;
-                foreach( QRect paintRect, paint.rects() )
+                foreach( const QRect &paintRect, paint.rects() )
                     {
                     for( int i=0; i<=(paintRect.height()/quadSize); i++ )
                         {
diff --git a/kcmkwin/kwincompositing/main.cpp b/kcmkwin/kwincompositing/main.cpp
index 9df80d0309..3d4bb90d6f 100644
--- a/kcmkwin/kwincompositing/main.cpp
+++ b/kcmkwin/kwincompositing/main.cpp
@@ -636,7 +636,7 @@ void KWinCompositingConfig::configChanged(bool reinitCompositing)
             KService::List services;
             QString message = i18n( "The following effects could not be activated:" );
             message.append( "<ul>" );
-            foreach( QString effect, disabledEffects )
+            foreach( const QString &effect, disabledEffects )
                 {
                 services = trader->query("KWin/Effect", "[X-KDE-PluginInfo-Name] == '" + effect + "'");
                 message.append( "<li>" );