diff --git a/lcl/interfaces/gtk2/gtk2proc.pp b/lcl/interfaces/gtk2/gtk2proc.pp
index 2194923646..dbf0063ca5 100644
--- a/lcl/interfaces/gtk2/gtk2proc.pp
+++ b/lcl/interfaces/gtk2/gtk2proc.pp
@@ -918,7 +918,8 @@ begin
       if (AComponent<>nil) and (AComponent.Name<>'') then
         RCName:=AComponent.Name+'_'+RCName;
     end;
-    gtk_widget_set_name(AWidget,PChar(RCName));
+    // do not set widget name issue #21661
+    // gtk_widget_set_name(AWidget,PChar(RCName));
     //debugln('Set_RC_Name ',GetWidgetDebugReport(AWidget),' RCName="',RCName,'"');
     gtk_widget_set_rc_style(AWidget);
   end;