diff --git a/prow/istio-pilot-multicluster-e2e.sh b/prow/istio-pilot-multicluster-e2e.sh
index c2b824f4cca2..843a67a0d767 100755
--- a/prow/istio-pilot-multicluster-e2e.sh
+++ b/prow/istio-pilot-multicluster-e2e.sh
@@ -23,4 +23,5 @@ CLUSTERREG_DIR="${CLUSTERREG_DIR:-$(mktemp -d /tmp/clusterregXXX)}"
 export CLUSTERREG_DIR
 
 #echo 'Running pilot multi-cluster e2e tests (v1alpha1, noauth)'
-./prow/e2e-suite.sh --timeout 50 --cluster_registry_dir="$CLUSTERREG_DIR" --single_test e2e_pilotv2_v1alpha3 "$@"
+#./prow/e2e-suite.sh --timeout 50 --cluster_registry_dir="$CLUSTERREG_DIR" --single_test e2e_pilotv2_v1alpha3 "$@"
+./prow/e2e-suite.sh --timeout 50 --cluster_registry_dir="$CLUSTERREG_DIR" --single_test e2e_multicluster_split_horizon "$@"