diff --git a/kompare/libdialogpages/diffpage.cpp b/kompare/libdialogpages/diffpage.cpp
index e4c26db9..1348b93b 100644
--- a/kompare/libdialogpages/diffpage.cpp
+++ b/kompare/libdialogpages/diffpage.cpp
@@ -162,7 +162,7 @@ void DiffPage::slotShowRegExpEditor()
 	if ( ! m_ignoreRegExpDialog )
 		m_ignoreRegExpDialog = KParts::ComponentFactory::createInstanceFromQuery<TQDialog>( "KRegExpEditor/KRegExpEditor", TQString(), TQT_TQOBJECT(this) );
 
-	KRegExpEditorInterface *iface = static_cast<KRegExpEditorInterface *>( m_ignoreRegExpDialog->qt_cast( "KRegExpEditorInterface" ) );
+	KRegExpEditorInterface *iface = static_cast<KRegExpEditorInterface *>( m_ignoreRegExpDialog->tqt_cast( "KRegExpEditorInterface" ) );
 
 	if ( !iface )
 		return;