diff --git a/back/src/Controller/IoSocketController.ts b/back/src/Controller/IoSocketController.ts
index dad81e7c..e055c143 100644
--- a/back/src/Controller/IoSocketController.ts
+++ b/back/src/Controller/IoSocketController.ts
@@ -205,7 +205,11 @@ export class IoSocketController {
         }));
 
         //disconnect webrtc room
+        if(!Client.webRtcRoomId){
+            return;
+        }
         Client.leave(Client.webRtcRoomId);
+        delete Client.webRtcRoomId;
     }
 
     /**