diff --git a/components/rx/rxcloseformvalidator.pas b/components/rx/rxcloseformvalidator.pas
index f48c76b94..878a200bf 100644
--- a/components/rx/rxcloseformvalidator.pas
+++ b/components/rx/rxcloseformvalidator.pas
@@ -345,6 +345,7 @@ var
   i:integer;
 begin
   inherited Notification(AComponent, Operation);
+  if AComponent = Self then exit;
   if Operation = opRemove then
   begin
     for i:=0 to FItems.Count - 1 do