diff --git a/Config.js b/Config.js
index e3e6b38..23cd75a 100644
--- a/Config.js
+++ b/Config.js
@@ -45,7 +45,7 @@ class Config {
     Object.defineProperty(this, name, {
         get: function() { return item.get() },
         set: function() {},
-        configurable: true
+        configurable: true,
     })
     return item;
   }