diff --git a/packages/backend/server/utils/bucket.ts b/packages/backend/server/utils/bucket.ts
index 8a5fe0a8..17e9420c 100644
--- a/packages/backend/server/utils/bucket.ts
+++ b/packages/backend/server/utils/bucket.ts
@@ -102,6 +102,7 @@ useDownloadedAtBucket.base = joinKeys(
 
 export function usePullRequestNumbersBucket(event: Event) {
   const storage = useBucket(event);
+  // TODO: this is a huge mistake, we should use usePullRequestNumbersBucket.key instead of useDownloadedAtBucket.key
   return prefixStorage<number>(storage, useDownloadedAtBucket.key);
 }
 usePullRequestNumbersBucket.key = "pr-number";