diff --git a/projects/ucap-webmessenger-app/src/app/store/messenger/event/effects.ts b/projects/ucap-webmessenger-app/src/app/store/messenger/event/effects.ts
index b3a0b7ed..09a9448c 100644
--- a/projects/ucap-webmessenger-app/src/app/store/messenger/event/effects.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/messenger/event/effects.ts
@@ -140,7 +140,7 @@ export class Effects {
           )
         ),
         tap(([action, roomInfo]) => {
-          if (roomInfo.roomSeq === action.roomSeq) {
+          if (!!roomInfo && roomInfo.roomSeq === action.roomSeq) {
             this.store.dispatch(appendInfoList({ info: action.info }));
           }