diff --git a/app/hooks/usePushNotifications.ts b/app/hooks/usePushNotifications.ts
index a572331..38d30cc 100644
--- a/app/hooks/usePushNotifications.ts
+++ b/app/hooks/usePushNotifications.ts
@@ -68,9 +68,11 @@ export function usePushNotifications() {
       setPermission(perm);
       if (perm !== "granted") return false;
 
-      // Get the VAPID public key from the backend.
+      // Get the VAPID public key from the backend. The backend's view returns
+      // {"public_key": ...} but its global CamelCaseJSONRenderer rewrites that
+      // to {"publicKey": ...} on the wire — so we read camelCase here.
       const keyRes = await fetch(`${apiBase}/api/notif/v1/push/vapid-public-key/`);
-      const { public_key: publicKey } = await keyRes.json();
+      const { publicKey } = await keyRes.json();
       if (!publicKey) return false;
 
       const reg = await navigator.serviceWorker.ready;