diff --git a/controllers/api_v1_relays.cc b/controllers/api_v1_relays.cc
index d7f5ef7..758b59d 100644
--- a/controllers/api_v1_relays.cc
+++ b/controllers/api_v1_relays.cc
@@ -15,8 +15,6 @@ relays::get_all(const HttpRequestPtr &req, std::function<void(const HttpResponse
         all_relays_json.append(all_relays[i]->to_json());
     }
 
-    Json::StreamWriterBuilder jw;
-
     auto resp = HttpResponse::newHttpJsonResponse(all_relays_json);
 
     callback(resp);