diff --git a/apps/mobile/src/app/profile.tsx b/apps/mobile/src/app/profile.tsx
index 6ee63dd..f70d90f 100644
--- a/apps/mobile/src/app/profile.tsx
+++ b/apps/mobile/src/app/profile.tsx
@@ -66,6 +66,8 @@ export default function ProfileScreen() {
     mutationFn: ({ kind, granted }: { kind: string; granted: boolean }) =>
       api("/v1/me/consents", { method: "PUT", body: { kind, granted } }),
     onSuccess: () => void queryClient.invalidateQueries({ queryKey: ["consents"] }),
+    onError: (err) =>
+      Alert.alert(t("common.oops"), err instanceof Error ? err.message : t("common.error")),
   });
 
   const togglePrecision = useMutation({