diff --git a/cmd/local-user-authenticator/main_test.go b/cmd/local-user-authenticator/main_test.go
index 0bc49255..837b3c2a 100644
--- a/cmd/local-user-authenticator/main_test.go
+++ b/cmd/local-user-authenticator/main_test.go
@@ -395,7 +395,7 @@ func newCertProvider(t *testing.T) (provider.DynamicTLSServingCertProvider, []by
 	serverName := "local-user-authenticator"
 	cert, err := ca.Issue(
 		pkix.Name{CommonName: serverName},
-		[]string{},
+		[]string{serverName},
 		time.Hour*24,
 	)
 	require.NoError(t, err)