diff --git a/packages/ra-core/src/dataProvider/useUpdateMany.ts b/packages/ra-core/src/dataProvider/useUpdateMany.ts
index c7d7b592083..16110b4be68 100644
--- a/packages/ra-core/src/dataProvider/useUpdateMany.ts
+++ b/packages/ra-core/src/dataProvider/useUpdateMany.ts
@@ -30,7 +30,7 @@ import { Identifier } from '../types';
  */
 const useUpdateMany = (
     resource: string,
-    ids: [Identifier],
+    ids: Identifier[],
     data: any,
     options?: any
 ) =>