diff --git a/wshandler/wshandler.go b/wshandler/wshandler.go
index 8e838ac..5ff3be0 100644
--- a/wshandler/wshandler.go
+++ b/wshandler/wshandler.go
@@ -339,7 +339,7 @@ func (sh *subhandler) mainLoop(ctx context.Context) {
 			room = makeRoom(name, roomDestroyChan)
 			rooms[name] = room
 			room.start(ctx)
-			sh.callReceiver.OnRoomCreated(sh.region, name)
+			go sh.callReceiver.OnRoomCreated(sh.region, name)
 		}
 		return room
 	}
@@ -352,7 +352,7 @@ func (sh *subhandler) mainLoop(ctx context.Context) {
 		select {
 		case destroyedRoom := <-roomDestroyChan:
 			delete(rooms, destroyedRoom)
-			sh.callReceiver.OnRoomDestroyed(sh.region, destroyedRoom)
+			go sh.callReceiver.OnRoomDestroyed(sh.region, destroyedRoom)
 
 		case usermsg := <-sh.localDeliveryChan:
 			// 로컬에 connection이 있는지 먼저 확인해 보기 위한 채널
@@ -475,10 +475,10 @@ func (sh *subhandler) mainLoop(ctx context.Context) {
 					room.out(c)
 				}
 				c.joinedRooms = nil
-				sh.callReceiver.OnClientMessageReceived(c.sender, Disconnected, nil)
+				go sh.callReceiver.OnClientMessageReceived(c.sender, Disconnected, nil)
 			} else {
 				entireConns[c.sender.Accid.Hex()] = c
-				sh.callReceiver.OnClientMessageReceived(c.sender, Connected, nil)
+				go sh.callReceiver.OnClientMessageReceived(c.sender, Connected, nil)
 			}
 		}
 	}