diff --git a/dev/scripts/gateway.sh b/dev/scripts/gateway.sh
index a125f1dae..60690cd33 100644
--- a/dev/scripts/gateway.sh
+++ b/dev/scripts/gateway.sh
@@ -109,6 +109,7 @@ function destroy_envoy_gateway_api() {
   if [[ "${helm_chart}" ]]; then
     helm uninstall envoy-gateway -n envoy-gateway-system
     kubectl delete ns envoy-gateway-system
+    kubectl delete ns gateway-system
   fi
 
   uninstall_crd "gateway.networking.k8s.io"