diff --git a/src/UI/Components/ToolBar/ToolBar.tsx b/src/UI/Components/ToolBar/ToolBar.tsx
index a4a435257..36ee13bfb 100644
--- a/src/UI/Components/ToolBar/ToolBar.tsx
+++ b/src/UI/Components/ToolBar/ToolBar.tsx
@@ -4,12 +4,13 @@ import { ICON_CDN } from '../../IconEnum';
 import { ICommandIconInfo } from '../TopToolBar/TopToolBarInterface';
 import './PropertiesPanel.less';
 import { userConfig } from '../../../Editor/UserConfig';
+import { observer } from 'mobx-react';
 
 export interface ToolBarProps
 {
     iconList: ICommandIconInfo[],
 }
-
+@observer
 export class ToolBar extends React.Component<ToolBarProps, {}>
 {
     render()