diff --git a/packages/stream_chat/lib/src/db/chat_persistence_client.dart b/packages/stream_chat/lib/src/db/chat_persistence_client.dart
index 07424299..50222499 100644
--- a/packages/stream_chat/lib/src/db/chat_persistence_client.dart
+++ b/packages/stream_chat/lib/src/db/chat_persistence_client.dart
@@ -200,7 +200,7 @@ abstract class ChatPersistenceClient {
             ...it.latestReactions!.where((r) => r.userId != null)
         ]);
 
-    var users = channelStates
+    final users = channelStates
         .map((cs) => [
               cs.channel?.createdBy,
               ...cs.messages