diff --git a/src/kooldock.cpp b/src/kooldock.cpp
index d4c4acc..01ed027 100644
--- a/src/kooldock.cpp
+++ b/src/kooldock.cpp
@@ -1639,7 +1639,7 @@ void KoolDock::windowAdded(WId id)
   }
   addTask(id);
   doUpdateGeometry();
-  debug(QString("windowAdded(%1)").arg(name));
+  debug(TQString("windowAdded(%1)").arg(name));
 }
 
 void KoolDock::windowRemoved(WId id)