diff --git a/webapp/packages/plugin-tools-panel/src/ToolsPanel/ToolsPanel.tsx b/webapp/packages/plugin-tools-panel/src/ToolsPanel/ToolsPanel.tsx
index f6624af7b5..226f15673b 100644
--- a/webapp/packages/plugin-tools-panel/src/ToolsPanel/ToolsPanel.tsx
+++ b/webapp/packages/plugin-tools-panel/src/ToolsPanel/ToolsPanel.tsx
@@ -63,10 +63,10 @@ interface IToolsState {
 }
 
 export const ToolsPanel = observer<Props>(function ToolsPanel({ container }) {
-  const prevTabs = useRef<string[]>([]);
   const state = useUserData<IToolsState>('tools', () => ({ selectedTabId: null }));
   const tabStyle = [BASE_TAB_STYLES, tabsStyles, UNDERLINE_TAB_STYLES];
   const tabs = container.getIdList();
+  const prevTabs = useRef<string[]>(tabs);
   const equal = isArraysEqual(prevTabs.current, tabs);
 
   untracked(action(() => {