diff --git a/packages/twenty-front/src/modules/page-layout/hooks/__tests__/usePageLayoutHandleLayoutChange.test.tsx b/packages/twenty-front/src/modules/page-layout/hooks/__tests__/usePageLayoutHandleLayoutChange.test.tsx
index 9cc2e0c6f0..032d491f84 100644
--- a/packages/twenty-front/src/modules/page-layout/hooks/__tests__/usePageLayoutHandleLayoutChange.test.tsx
+++ b/packages/twenty-front/src/modules/page-layout/hooks/__tests__/usePageLayoutHandleLayoutChange.test.tsx
@@ -52,6 +52,7 @@ describe('usePageLayoutHandleLayoutChange', () => {
     });
 
     expect(result.current.layouts['tab-1']).toEqual(newLayouts);
+    expect(result.current.layouts['tab-1']).not.toBe(newLayouts); // Ensure a clone was set, not the same reference
     expect(result.current.layouts['tab-2']).toBeUndefined();
   });
 
diff --git a/packages/twenty-front/src/modules/page-layout/hooks/usePageLayoutHandleLayoutChange.ts b/packages/twenty-front/src/modules/page-layout/hooks/usePageLayoutHandleLayoutChange.ts
index d26ce85ee6..bdb34b2a96 100644
--- a/packages/twenty-front/src/modules/page-layout/hooks/usePageLayoutHandleLayoutChange.ts
+++ b/packages/twenty-front/src/modules/page-layout/hooks/usePageLayoutHandleLayoutChange.ts
@@ -48,7 +48,7 @@ export const usePageLayoutHandleLayoutChange = (
 
         set(pageLayoutCurrentLayoutsState, {
           ...currentTabLayouts,
-          [activeTabId]: allLayouts,
+          [activeTabId]: structuredClone(allLayouts),
         });
 
         const pageLayoutDraft = snapshot