diff --git a/packages/ra-ui-materialui/src/layout/Notification.tsx b/packages/ra-ui-materialui/src/layout/Notification.tsx
index dfe0f16f0c5..72225a3de19 100644
--- a/packages/ra-ui-materialui/src/layout/Notification.tsx
+++ b/packages/ra-ui-materialui/src/layout/Notification.tsx
@@ -117,7 +117,7 @@ export const Notification = (props: NotificationProps) => {
             {...rest}
             {...options}
         >
-            {message && typeof message !== 'string' && message}
+            {message && typeof message !== 'string' ? message : null}
         </StyledSnackbar>
     );
 };