diff --git a/back/src/Controller/IoSocketController.ts b/back/src/Controller/IoSocketController.ts
index 88af801a..ff844358 100644
--- a/back/src/Controller/IoSocketController.ts
+++ b/back/src/Controller/IoSocketController.ts
@@ -71,7 +71,10 @@ export class IoSocketController{
                 this.saveUserInformation((socket as ExSocketInterface), messageUserPosition);
 
                 //refresh position of all user in all rooms in real time
-                let rooms = (this.Io.sockets.adapter.rooms as ExtRoomsInterface)
+                let rooms = (this.Io.sockets.adapter.rooms as ExtRoomsInterface);
+                if(!rooms.refreshUserPosition){
+                    rooms.refreshUserPosition = RefreshUserPositionFunction;
+                }
                 rooms.refreshUserPosition(rooms, this.Io);
             });
 
diff --git a/front/src/WebRtc/WebRtcEventManager.ts b/front/src/WebRtc/WebRtcEventManager.ts
index 19c46701..28c6acfc 100644
--- a/front/src/WebRtc/WebRtcEventManager.ts
+++ b/front/src/WebRtc/WebRtcEventManager.ts
@@ -16,8 +16,9 @@ export class WebRtcEventManager {
         this.eventVideoAnswer();
         this.eventIceCandidate();
 
-        //connect on the room to create a meet
-        Connexion.socket.emit('webrtc-room', JSON.stringify({roomId: roomId}));
+        //start to connect on event
+        //TODO test 
+        this.emitWebRtcRoom();
     }
 
     /**
@@ -69,6 +70,11 @@ export class WebRtcEventManager {
         });
     }
 
+    emitWebRtcRoom(){
+        //connect on the room to create a meet
+        this.Connexion.socket.emit('webrtc-room', JSON.stringify({roomId: this.RoomId}));
+    }
+
     emitIceCandidate(message : any){
         message.roomId = this.RoomId;
         this.Connexion.socket.emit('ice-candidate', JSON.stringify(message));