diff --git a/packages/client/lib/cluster/index.ts b/packages/client/lib/cluster/index.ts
index 12928e71f1..622ac78f46 100644
--- a/packages/client/lib/cluster/index.ts
+++ b/packages/client/lib/cluster/index.ts
@@ -548,7 +548,7 @@ export default class RedisCluster<
 
   SUNSUBSCRIBE<T extends boolean = false>(
     channels: string | Array<string>,
-    listener: PubSubListener<T>,
+    listener?: PubSubListener<T>,
     bufferMode?: T
   ) {
     return this._self.#slots.executeShardedUnsubscribeCommand(