diff --git a/source/table_editor.dfm b/source/table_editor.dfm
index 7c9c3ac5..1a400e56 100644
--- a/source/table_editor.dfm
+++ b/source/table_editor.dfm
@@ -368,7 +368,6 @@ object frmTableEditor: TfrmTableEditor
         Anchors = [akLeft, akTop, akRight]
         ItemHeight = 0
         TabOrder = 6
-        OnChange = Modification
         OnSelect = comboEngineSelect
       end
       object chkCharsetConvert: TCheckBox
diff --git a/source/table_editor.pas b/source/table_editor.pas
index 55075378..16ac15cd 100644
--- a/source/table_editor.pas
+++ b/source/table_editor.pas
@@ -1081,6 +1081,7 @@ begin
   IsMerge := (Sender as TComboBox).Text = 'MRG_MYISAM';
   memoUnionTables.Enabled := IsMerge;
   comboInsertMethod.Enabled := IsMerge;
+  Modification(Sender);
 end;