diff --git a/flow/agent/deer-go/main.go b/flow/agent/deer-go/main.go
index fff4b0f..3d41b7c 100644
--- a/flow/agent/deer-go/main.go
+++ b/flow/agent/deer-go/main.go
@@ -71,7 +71,7 @@ func runServer() {
 	}()
 	infra.InitCozeLoopTracing()
 
-	h := server.Default(server.WithHostPorts(":8000"), tracer)
+	h := server.Default(server.WithHostPorts(":8000"))
 	if tracer.F != nil && cfg != nil {
 		h = server.Default(server.WithHostPorts(":8000"), tracer)
 		h.Use(hertztracing.ServerMiddleware(cfg))