diff --git a/src/Utils/chat-utils.ts b/src/Utils/chat-utils.ts
index 99765e2..b6668b8 100644
--- a/src/Utils/chat-utils.ts
+++ b/src/Utils/chat-utils.ts
@@ -840,8 +840,8 @@ export const processSyncAction = (
 	}
 
 	function isValidPatchBasedOnMessageRange(chat: Chat, msgRange: proto.SyncActionValue.ISyncActionMessageRange | null | undefined) {
-		const lastMsgTimestamp = msgRange?.lastMessageTimestamp || msgRange?.lastSystemMessageTimestamp || 0
-		const chatLastMsgTimestamp = chat?.lastMessageRecvTimestamp || 0
-		return lastMsgTimestamp >= chatLastMsgTimestamp
+		  const lastMsgTimestamp = Number(msgRange?.lastMessageTimestamp || msgRange?.lastSystemMessageTimestamp || 0)
+		  const chatLastMsgTimestamp = Number(chat?.lastMessageRecvTimestamp || 0)
+		  return lastMsgTimestamp >= chatLastMsgTimestamp
 	}
-}
\ No newline at end of file
+}