diff --git a/assets/javascripts/discourse/components/json-file-uploader.js.es6 b/assets/javascripts/discourse/components/json-file-uploader.js.es6
index 95a2aa4..a2560c2 100644
--- a/assets/javascripts/discourse/components/json-file-uploader.js.es6
+++ b/assets/javascripts/discourse/components/json-file-uploader.js.es6
@@ -99,7 +99,7 @@ export default Ember.Component.extend({
       }
       return false;
     });
-    const firstFile = fileList[0];
+    const firstFile = files[0];
 
     this.set("loading", true);