diff --git a/back/src/Model/Websocket/ExtRooms.ts b/back/src/Model/Websocket/ExtRooms.ts
index bb49283d..f0eadea6 100644
--- a/back/src/Model/Websocket/ExtRooms.ts
+++ b/back/src/Model/Websocket/ExtRooms.ts
@@ -1,8 +1,6 @@
 import {ExtRoomsInterface} from "./ExtRoomsInterface";
 import socketIO = require('socket.io');
 import {ExSocketInterface} from "./ExSocketInterface";
-import {MessageUserPosition} from "./MessageUserPosition";
-import {World} from "_Model/World";
 
 export class ExtRooms implements ExtRoomsInterface{
     userPositionMapByRoom: any;
@@ -10,9 +8,9 @@ export class ExtRooms implements ExtRoomsInterface{
     Worlds: any;
 
     [room: string]: SocketIO.Room;
-}
+};
 
-let RefreshUserPositionFunction = function(rooms : ExtRooms, Io: socketIO.Server, Worlds: Map<string, World>) {
+let RefreshUserPositionFunction = function(rooms : ExtRooms, Io: socketIO.Server) {
     let clients = Io.clients();
     let socketsKey = Object.keys(Io.clients().sockets);
 
@@ -40,8 +38,8 @@ let RefreshUserPositionFunction = function(rooms : ExtRooms, Io: socketIO.Server
         mapPositionUserByRoom.set(data.roomId, dataArray);
     }
     rooms.userPositionMapByRoom = Array.from(mapPositionUserByRoom);
-}
+};
 
 export {
     RefreshUserPositionFunction
-}
+};