diff --git a/config/environment.default.js b/config/environment.default.js
index 025939c9db..ba17a8e9fb 100644
--- a/config/environment.default.js
+++ b/config/environment.default.js
@@ -157,6 +157,6 @@ module.exports = {
     }
   },
   theme: {
-    name: 'mantis',
+    name: 'default',
   }
 };