diff --git a/staging/src/k8s.io/apiserver/pkg/server/routes/openapi.go b/staging/src/k8s.io/apiserver/pkg/server/routes/openapi.go
index 17cc1f85a09..2819d157601 100644
--- a/staging/src/k8s.io/apiserver/pkg/server/routes/openapi.go
+++ b/staging/src/k8s.io/apiserver/pkg/server/routes/openapi.go
@@ -43,10 +43,7 @@ func (oa OpenAPI) InstallV2(c *restful.Container, mux *mux.PathRecorderMux) (*ha
 	}
 	spec.Definitions = handler.PruneDefaults(spec.Definitions)
 	openAPIVersionedService := handler.NewOpenAPIService(spec)
-	err = openAPIVersionedService.RegisterOpenAPIVersionedService("/openapi/v2", mux)
-	if err != nil {
-		klog.Fatalf("Failed to register versioned open api spec for root: %v", err)
-	}
+	openAPIVersionedService.RegisterOpenAPIVersionedService("/openapi/v2", mux)
 
 	return openAPIVersionedService, spec
 }
diff --git a/staging/src/k8s.io/kube-aggregator/pkg/controllers/openapi/aggregator/aggregator.go b/staging/src/k8s.io/kube-aggregator/pkg/controllers/openapi/aggregator/aggregator.go
index 29d085a23ea..733da8d46f1 100644
--- a/staging/src/k8s.io/kube-aggregator/pkg/controllers/openapi/aggregator/aggregator.go
+++ b/staging/src/k8s.io/kube-aggregator/pkg/controllers/openapi/aggregator/aggregator.go
@@ -128,10 +128,7 @@ func BuildAndRegisterAggregator(downloader *Downloader, delegationTarget server.
 
 	// Install handler
 	s.openAPIVersionedService = handler.NewOpenAPIService(specToServe)
-	err = s.openAPIVersionedService.RegisterOpenAPIVersionedService("/openapi/v2", pathHandler)
-	if err != nil {
-		return nil, err
-	}
+	s.openAPIVersionedService.RegisterOpenAPIVersionedService("/openapi/v2", pathHandler)
 
 	return s, nil
 }