diff --git a/src/api/chats.js b/src/api/chats.js
index 1df828075d..f7dd083355 100644
--- a/src/api/chats.js
+++ b/src/api/chats.js
@@ -152,7 +152,7 @@ chatsAPI.mark = async (caller, data) => {
 			match: `chat_*`,
 		});
 		chatNids = chatNids.filter(
-			nid => nid && !nid.startsWith(`chat_${caller.uid}`) && nid.endsWith(`_${roomId}`)
+			nid => nid && !nid.startsWith(`chat_${caller.uid}_`) && nid.endsWith(`_${roomId}`)
 		);
 
 		await notifications.markReadMultiple(chatNids, caller.uid);