diff --git a/js/server/modules/@arangodb/foxx/legacy/swagger.js b/js/server/modules/@arangodb/foxx/legacy/swagger.js
index de00ffc8d2..5365cb922d 100644
--- a/js/server/modules/@arangodb/foxx/legacy/swagger.js
+++ b/js/server/modules/@arangodb/foxx/legacy/swagger.js
@@ -115,7 +115,7 @@ function resolveFoxx(req, res, appPath) {
 }
 
 function swaggerJson(req, res, opts) {
-  let mount = mount || opts.mount;
+  let mount = opts.mount;
   let foxx = opts.foxx || resolveFoxx(req, res, mount);
   let docs = foxx.docs;
   if (!docs) {
diff --git a/js/server/modules/@arangodb/foxx/router/swagger-context.js b/js/server/modules/@arangodb/foxx/router/swagger-context.js
index da7808613e..f16293db95 100644
--- a/js/server/modules/@arangodb/foxx/router/swagger-context.js
+++ b/js/server/modules/@arangodb/foxx/router/swagger-context.js
@@ -395,8 +395,8 @@ module.exports = exports = class SwaggerContext {
     }
 
     operation.responses = {
-      default: {
-        description: 'Unexpected error.',
+      500: {
+        description: 'Default error response.',
         schema: joi2schema(DEFAULT_ERROR_SCHEMA)
       }
     };