diff --git a/certbot_nginx_unit/configurator.py b/certbot_nginx_unit/configurator.py
index 90ed27d..f0c143e 100644
--- a/certbot_nginx_unit/configurator.py
+++ b/certbot_nginx_unit/configurator.py
@@ -169,7 +169,7 @@ def _ensure_acme_route(self, actual_route: str) -> str:
             }
         ]
         if actual_route != "routes" and actual_route != "routes/acme":
-            acme_route.append({"pass": actual_route})
+            acme_route.append({"action": {"pass": actual_route}})
 
         acme_route_json = json.dumps(acme_route)