diff --git a/src/api/index.js b/src/api/index.js
index 32961ba..560beca 100755
--- a/src/api/index.js
+++ b/src/api/index.js
@@ -4,7 +4,7 @@ import copy from '../copy/en'
 
 export default ({ config, controller }) => {
   let api = Router()
-  const fileDest = config.EXPORT_FILE_DEST || ""
+  const fileDest = config.EXPORT_FILE_DEST || null
 
   api.get('/', (req, res) => {
     res.json({
diff --git a/src/lib/Controller.js b/src/lib/Controller.js
index a95b5ae..30a2ce8 100644
--- a/src/lib/Controller.js
+++ b/src/lib/Controller.js
@@ -41,7 +41,7 @@ class Controller {
   }
 
   retrieveAll (fileDest) {
-    if (fileDest === '')  return Promise.reject(new Error(copy.errors.export.fileMissing))
+    if (!fileDest)  return Promise.reject(new Error(copy.errors.export.fileMissing))
 
     const indexedData = {}
     const urls = []