diff --git a/tools/run_tests/xds_k8s_test_driver/tests/failover_test.py b/tools/run_tests/xds_k8s_test_driver/tests/failover_test.py
index 3afa154a42a..3f82fc081a1 100644
--- a/tools/run_tests/xds_k8s_test_driver/tests/failover_test.py
+++ b/tools/run_tests/xds_k8s_test_driver/tests/failover_test.py
@@ -40,7 +40,7 @@ class FailoverTest(xds_k8s_testcase.RegularXdsKubernetesTestCase):
         # Test case implementation seems to be broken for Java and Go.
         # Core (cpp and python), and Node seem to work fine.
         # TODO(b/238226704): Remove when the test is fixed.
-        return config.client_lang not in _Lang.JAVA | _Lang.GO
+        return config.client_lang not in _Lang.JAVA | _Lang.GO | _Lang.CPP
 
     def setUp(self):
         super().setUp()