diff --git a/addon/uploaders/base.js b/addon/uploaders/base.js
index 9cb3741..2afe1d2 100644
--- a/addon/uploaders/base.js
+++ b/addon/uploaders/base.js
@@ -3,7 +3,6 @@ import Ember from 'ember';
 const {
   get,
   set,
-  isArray,
   run
 } = Ember;
 
@@ -88,7 +87,7 @@ export default Ember.Object.extend(Ember.Evented, {
     }
 
     // if is a array of files ...
-    if (isArray(files)) {
+    if (files.constructor === FileList) {
       const paramKey = `${this.toNamespacedParam(this.paramName)}[]`;
 
       for (let i = 0; i < files.length; i++) {