diff --git a/kvoctrain/kvoctrain/kvoctraintableitem.cpp b/kvoctrain/kvoctrain/kvoctraintableitem.cpp
index f4aefca8..80a2dd53 100644
--- a/kvoctrain/kvoctrain/kvoctraintableitem.cpp
+++ b/kvoctrain/kvoctrain/kvoctraintableitem.cpp
@@ -106,7 +106,7 @@ TQWidget *KVocTrainTableItem::createEditor() const
 void KVocTrainTableItem::setContentFromEditor( TQWidget *w )
 {
   if (m_doc != 0) {
-    if ( w->inherits( "TQComboBox" ) ) {
+    if ( w->inherits( TQCOMBOBOX_OBJECT_NAME_STRING ) ) {
       if (col() == KV_COL_MARK) {
         TQComboBox *statebox = (TQComboBox*) w;
         kvoctrainExpr *expr = m_doc->getEntry(row());
diff --git a/kvoctrain/kvoctrain/query-dialogs/RandomQueryDlg.cpp b/kvoctrain/kvoctrain/query-dialogs/RandomQueryDlg.cpp
index 8f1e315f..2e2a857b 100644
--- a/kvoctrain/kvoctrain/query-dialogs/RandomQueryDlg.cpp
+++ b/kvoctrain/kvoctrain/query-dialogs/RandomQueryDlg.cpp
@@ -486,7 +486,7 @@ void RandomQueryDlg::slotTransChanged(const TQString&)
 {
   mw->verify->setDefault(true);
   bool suggestions = Prefs::suggestions();
-  if ( suggestions && sender() && sender() -> isA ("TQComboBox") )
+  if ( suggestions && sender() && sender() -> isA (TQCOMBOBOX_OBJECT_NAME_STRING) )
   {
     TQLineEdit* edit = ((TQComboBox*) sender()) -> lineEdit();
     resetField (edit);
@@ -497,7 +497,7 @@ void RandomQueryDlg::slotTransChanged(const TQString&)
     else
       mw->status -> clear();
   }
-  else if ( ! suggestions && sender() && sender() -> isA ("TQLineEdit") )
+  else if ( ! suggestions && sender() && sender() -> isA (TQLINEEDIT_OBJECT_NAME_STRING) )
     resetField ((TQLineEdit*) sender());
 }