diff --git a/tools/internal_ci/linux/grpc_xds_k8s_lb.sh b/tools/internal_ci/linux/grpc_xds_k8s_lb.sh
index 859262f76f2..f0c1c43918c 100755
--- a/tools/internal_ci/linux/grpc_xds_k8s_lb.sh
+++ b/tools/internal_ci/linux/grpc_xds_k8s_lb.sh
@@ -169,7 +169,7 @@ main() {
   cd "${TEST_DRIVER_FULL_DIR}"
   local failed_tests=0
   run_alpha_test subsetting_test || (( ++failed_tests ))
-  test_suites=("api_listener_test" "change_backend_service_test" "failover_test" "remove_neg_test" "round_robin_test" "affinity_test" "outlier_detection_test")
+  test_suites=("api_listener_test" "change_backend_service_test" "failover_test" "remove_neg_test" "round_robin_test" "affinity_test" "outlier_detection_test" "custom_lb_test")
   for test in "${test_suites[@]}"; do
     run_test $test || (( ++failed_tests ))
   done