diff --git a/ghost/core/core/server/web/api/endpoints/admin/middleware.js b/ghost/core/core/server/web/api/endpoints/admin/middleware.js
index ab4dde91fc..ca96e95f5a 100644
--- a/ghost/core/core/server/web/api/endpoints/admin/middleware.js
+++ b/ghost/core/core/server/web/api/endpoints/admin/middleware.js
@@ -64,7 +64,7 @@ const notImplemented = function notImplemented(req, res, next) {
     next(new errors.InternalServerError({
         errorType: 'NotImplementedError',
         message: tpl(messages.notImplemented),
-        statusCode: '501'
+        statusCode: 501
     }));
 };