diff --git a/kcmkwin/kwincompositing/main.cpp b/kcmkwin/kwincompositing/main.cpp
index 8dd32f71eb..d086aa74fa 100644
--- a/kcmkwin/kwincompositing/main.cpp
+++ b/kcmkwin/kwincompositing/main.cpp
@@ -855,6 +855,7 @@ void KWinCompositingConfig::copyPluginsToTmpConfig()
     KConfigGroup newGroup( mNewConfig, "Plugins" );
     KConfigGroup tmpGroup( mTmpConfig, "Plugins" );
     tmpGroup.deleteGroup();
+    mTmpConfig->sync();
     newGroup.copyTo( &tmpGroup );
     }
 
@@ -863,6 +864,7 @@ void KWinCompositingConfig::copyPluginsToNewConfig()
     KConfigGroup newGroup( mNewConfig, "Plugins" );
     KConfigGroup tmpGroup( mTmpConfig, "Plugins" );
     newGroup.deleteGroup();
+    mNewConfig->sync();
     tmpGroup.copyTo( &newGroup );
     }
 
diff --git a/options.cpp b/options.cpp
index 45f5466ca2..a7ceb5aef3 100644
--- a/options.cpp
+++ b/options.cpp
@@ -51,9 +51,9 @@ Options::Options()
     // If there is any contents in the backup file, it means that KWin crashed
     // while testing a new config. Revert the config.
     // TODO: Notify the user?
-    bool backupImported = importBackup();
-    kWarning( 1212, backupImported ) << "The new settings have most likely caused the X server "
-        "to crash. The configuration options have been reverted to their old values.";
+    if( importBackup() )
+        kWarning( 1212 ) << "The new settings have most likely caused the X server "
+            "to crash. The configuration options have been reverted to their old values.";
 
     updateSettings();
     }