diff --git a/packages/rocketchat-ui-sidenav/client/roomList.js b/packages/rocketchat-ui-sidenav/client/roomList.js
index 28e8d558bcfa..fcb0116a6b77 100644
--- a/packages/rocketchat-ui-sidenav/client/roomList.js
+++ b/packages/rocketchat-ui-sidenav/client/roomList.js
@@ -124,6 +124,9 @@ const mergeSubRoom = (record/*, t*/) => {
 
 RocketChat.callbacks.add('cachedCollection-received-rooms', (room) => {
 	const sub = RocketChat.models.Subscriptions.findOne({ rid: room._id });
+	if (!sub) {
+		return;
+	}
 	const $set = {lastMessage : room.lastMessage, lm: room._updatedAt, ...getLowerCaseNames(room, sub.name)};
 	RocketChat.models.Subscriptions.update({ rid: room._id }, {$set});
 });