diff --git a/pkg/apiserver/apiserver.go b/pkg/apiserver/apiserver.go
index d3a47c7a3..440cacee5 100644
--- a/pkg/apiserver/apiserver.go
+++ b/pkg/apiserver/apiserver.go
@@ -186,7 +186,7 @@ func monitorRequest(r *restful.Request, response *restful.Response, chain *restf
 }
 
 func (s *APIServer) installMetricsAPI() {
-	register()
+	registerMetrics()
 	metrics.Defaults.Install(s.container)
 }
 
diff --git a/pkg/apiserver/metric.go b/pkg/apiserver/metric.go
index 1365202fb..27906950b 100644
--- a/pkg/apiserver/metric.go
+++ b/pkg/apiserver/metric.go
@@ -35,7 +35,7 @@ var (
 	}
 )
 
-func register() {
+func registerMetrics() {
 	for _, m := range metricsList {
 		metrics.MustRegister(m)
 	}
diff --git a/pkg/models/openpitrix/metric.go b/pkg/models/openpitrix/metric.go
index 307099322..794668f09 100644
--- a/pkg/models/openpitrix/metric.go
+++ b/pkg/models/openpitrix/metric.go
@@ -17,9 +17,5 @@ var (
 )
 
 func init() {
-	Register()
-}
-
-func Register() {
 	metrics.MustRegister(appTemplateCreationCounter)
 }