diff --git a/server/authentication_test.go b/server/authentication_test.go
index ff476287958f..a677810d9099 100644
--- a/server/authentication_test.go
+++ b/server/authentication_test.go
@@ -63,7 +63,6 @@ func sqlForUser(context *base.Context) proto.Message {
 // Verify client certificate enforcement and user whitelisting.
 func TestSSLEnforcement(t *testing.T) {
 	defer leaktest.AfterTest(t)
-	t.Skip("#4663")
 	s := StartTestServer(t)
 	defer s.Stop()