diff --git a/kopete/plugins/highlight/highlightpreferences.cpp b/kopete/plugins/highlight/highlightpreferences.cpp
index eead8241..90aa053f 100644
--- a/kopete/plugins/highlight/highlightpreferences.cpp
+++ b/kopete/plugins/highlight/highlightpreferences.cpp
@@ -246,7 +246,7 @@ void HighlightPreferences::slotEditRegExp()
 	if ( editorDialog )
 	{
 		// tdeutils was installed, so the dialog was found fetch the editor interface
-		KRegExpEditorInterface *editor = static_cast<KRegExpEditorInterface *>( editorDialog->qt_cast( "KRegExpEditorInterface" ) );
+		KRegExpEditorInterface *editor = static_cast<KRegExpEditorInterface *>( editorDialog->tqt_cast( "KRegExpEditorInterface" ) );
 		Q_ASSERT( editor ); // This should not fail!
 		// now use the editor.
 		editor->setRegExp(preferencesDialog->m_search->text());