diff --git a/lib/db/file.js b/lib/db/file.js
index <HASH>..<HASH> 100644
--- a/lib/db/file.js
+++ b/lib/db/file.js
@@ -188,5 +188,8 @@ module.exports = utils.inherit(Object, {
   },
   getUserBinCount: function (id, cb) {
     cb(null, { total: 0 }); // TODO read directory for count
+  },
+  setProAccount: function(cb) {
+    cb(null, null);
   }
 });
Adding setProAccount method to file db