diff --git a/staging/src/k8s.io/kube-aggregator/pkg/controllers/openapiv3/aggregator/aggregator.go b/staging/src/k8s.io/kube-aggregator/pkg/controllers/openapiv3/aggregator/aggregator.go
index 2d79554f756..0b38e10fda4 100644
--- a/staging/src/k8s.io/kube-aggregator/pkg/controllers/openapiv3/aggregator/aggregator.go
+++ b/staging/src/k8s.io/kube-aggregator/pkg/controllers/openapiv3/aggregator/aggregator.go
@@ -114,6 +114,7 @@ func (s *specProxier) AddUpdateAPIService(handler http.Handler, apiservice *v1.A
 	if apiServiceInfo, ok := s.apiServiceInfo[apiservice.Name]; ok {
 		apiServiceInfo.apiService = *apiservice
 		apiServiceInfo.handler = handler
+		return
 	}
 	s.apiServiceInfo[apiservice.Name] = &openAPIV3APIServiceInfo{
 		apiService: *apiservice,