diff --git a/app/api/coreApi.js b/app/api/coreApi.js
index eda4f11..5dd9a2e 100644
--- a/app/api/coreApi.js
+++ b/app/api/coreApi.js
@@ -1,4 +1,5 @@
 var LRU = require("lru-cache");
+var fs = require('fs');
 
 var utils = require("../utils.js");
 var config = require("../config.js");