diff --git a/core/connection.go b/core/connection.go
index 667d314..b20a954 100644
--- a/core/connection.go
+++ b/core/connection.go
@@ -95,7 +95,7 @@ func (cs *connections) ClientConnected(conn *websocket.Conn, callby *wshandler.S
 	cs.new(callby.Accid, conn)
 }
 
-func (cs *connections) ClientDisconnected(conn *websocket.Conn, callby *wshandler.Sender) {
+func (cs *connections) ClientDisconnected(msg string, callby *wshandler.Sender) {
 	cs.delete(callby.Accid)
 }
 
diff --git a/core/friend.go b/core/friend.go
index 6d2230b..78115c6 100644
--- a/core/friend.go
+++ b/core/friend.go
@@ -196,7 +196,7 @@ func makeFriends(ctx context.Context, so *Social, conns *connections) (*friends,
 	}, nil
 }
 
-func (fs *friends) ClientDisconnected(conn *websocket.Conn, callby *wshandler.Sender) {
+func (fs *friends) ClientDisconnected(msg string, callby *wshandler.Sender) {
 	// 로그 오프 상태를 알림
 	meidx := callby.Accid[11] % monitoring_center_count
 	fs.moncen[meidx].publishState(callby.Accid, "")