diff --git a/server/websocket/internal/logic/ws_render_cancel_notify_unity.go b/server/websocket/internal/logic/ws_render_cancel_notify_unity.go
index e347f047..3bcf07b2 100644
--- a/server/websocket/internal/logic/ws_render_cancel_notify_unity.go
+++ b/server/websocket/internal/logic/ws_render_cancel_notify_unity.go
@@ -37,12 +37,10 @@ func isCancelRenderPanic(err any) bool {
 
 // 发送取消上下文消息给unity
 func sendCancelRenderMsgToUnity(wid string, deadlineTime int64) {
-	h := md5.New()
-	h.Write([]byte(fmt.Sprintf("%s_%d", wid, deadlineTime)))
 	data := cancelUnityCtlChanItem{
 		Wid:          wid,
 		DeadlineTime: deadlineTime,
-		Sign:         hex.EncodeToString(h.Sum(nil)),
+		Sign:         signMessage(wid, deadlineTime),
 	}
 	select {
 	case cancelUnityCtlChan <- data:
@@ -63,6 +61,13 @@ func DialUdp(ctx context.Context, config config.Config) error {
 	return nil
 }
 
+// 签名消息
+func signMessage(wid string, deadlineTime int64) string {
+	h := md5.New()
+	h.Write([]byte(fmt.Sprintf("%s_fusen_control_unity_%d", wid, deadlineTime)))
+	return hex.EncodeToString(h.Sum(nil))
+}
+
 // 消费数据
 func ConsumeCancelUnityChanMessage(ctx context.Context, conn *net.UDPConn) {
 	defer func() {