diff --git a/web/src/context/AppContext.tsx b/web/src/context/AppContext.tsx
index 451762e..a66d9e9 100644
--- a/web/src/context/AppContext.tsx
+++ b/web/src/context/AppContext.tsx
@@ -235,7 +235,10 @@ export const AppProvider = ({ children }: { children: React.ReactNode }) => {
     return false;
   };
 
-  const logout = () => setState((s) => ({ ...s, user: undefined }));
+  const logout = () => {
+    setState((s) => ({ ...s, user: undefined }));
+    supabase.auth.signOut().catch(console.error);
+  };
 
   const toggleFavorite = (shopId: string) => {
     setState((s) => {