diff --git a/pkg/controller/core.oam.dev/v1alpha2/core/components/componentdefinition/componentdefinition_suit_test.go b/pkg/controller/core.oam.dev/v1alpha2/core/components/componentdefinition/componentdefinition_suit_test.go
index 9dfa5fb90..c4f4a1192 100644
--- a/pkg/controller/core.oam.dev/v1alpha2/core/components/componentdefinition/componentdefinition_suit_test.go
+++ b/pkg/controller/core.oam.dev/v1alpha2/core/components/componentdefinition/componentdefinition_suit_test.go
@@ -78,6 +78,8 @@ var _ = BeforeSuite(func(done Done) {
 	Expect(err).ToNot(HaveOccurred())
 	dm, err := discoverymapper.New(mgr.GetConfig())
 	Expect(err).ToNot(HaveOccurred())
+	_, err = dm.Refresh()
+	Expect(err).ToNot(HaveOccurred())
 
 	r = Reconciler{
 		Client: mgr.GetClient(),