diff --git a/core/service/serviceconf.go b/core/service/serviceconf.go
index 04d9283e..a4999ab8 100644
--- a/core/service/serviceconf.go
+++ b/core/service/serviceconf.go
@@ -23,17 +23,22 @@ const (
 	ProMode = "pro"
 )
 
-// A ServiceConf is a service config.
-type ServiceConf struct {
-	Name       string
-	Log        logx.LogConf
-	Mode       string `json:",default=pro,options=dev|test|rt|pre|pro"`
-	MetricsUrl string `json:",optional"`
-	// Deprecated: please use DevServer
-	Prometheus prometheus.Config `json:",optional"`
-	Telemetry  trace.Config      `json:",optional"`
-	DevServer  devserver.Config  `json:",optional"`
-}
+type (
+	// DevServerConfig is type alias for devserver.Config
+	DevServerConfig = devserver.Config
+
+	// A ServiceConf is a service config.
+	ServiceConf struct {
+		Name       string
+		Log        logx.LogConf
+		Mode       string `json:",default=pro,options=dev|test|rt|pre|pro"`
+		MetricsUrl string `json:",optional"`
+		// Deprecated: please use DevServer
+		Prometheus prometheus.Config `json:",optional"`
+		Telemetry  trace.Config      `json:",optional"`
+		DevServer  DevServerConfig   `json:",optional"`
+	}
+)
 
 // MustSetUp sets up the service, exits on error.
 func (sc ServiceConf) MustSetUp() {
diff --git a/core/service/serviceconf_test.go b/core/service/serviceconf_test.go
index badf249f..5e37421d 100644
--- a/core/service/serviceconf_test.go
+++ b/core/service/serviceconf_test.go
@@ -5,6 +5,7 @@ import (
 
 	"github.com/stretchr/testify/assert"
 	"github.com/zeromicro/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/internal/devserver"
 )
 
 func TestServiceConf(t *testing.T) {
@@ -14,6 +15,10 @@ func TestServiceConf(t *testing.T) {
 			Mode: "console",
 		},
 		Mode: "dev",
+		DevServer: devserver.Config{
+			Port:       6470,
+			HealthPath: "/healthz",
+		},
 	}
 	c.MustSetUp()
 }