diff --git a/functions/gcloud.ts b/functions/gcloud.ts
index d6f0aa0..6ccd241 100644
--- a/functions/gcloud.ts
+++ b/functions/gcloud.ts
@@ -274,7 +274,7 @@ export async function sendPushNotification(
   env: Env,
   title: string,
   body: string,
-  token?: string,
+  token: string,
 ) {
   const message = {
     notification: {