diff --git a/projects/ucap-webmessenger-app/src/app/store/messenger/room/effects.ts b/projects/ucap-webmessenger-app/src/app/store/messenger/room/effects.ts
index c62c3b18..b0331506 100644
--- a/projects/ucap-webmessenger-app/src/app/store/messenger/room/effects.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/messenger/room/effects.ts
@@ -142,7 +142,10 @@ export class Effects {
         update({
           req: {
             roomSeq: roomInfo.roomSeq,
-            roomName: roomInfo.roomName,
+            roomName:
+              roomInfo.roomName.trim().length === 0
+                ? ' '
+                : roomInfo.roomName.trim(),
             receiveAlarm: !roomInfo.receiveAlarm,
             syncAll: false
           }