diff --git a/dist/better-form-validation.js b/dist/better-form-validation.js
index 0db93b2..af4a36b 100644
--- a/dist/better-form-validation.js
+++ b/dist/better-form-validation.js
@@ -9,7 +9,7 @@
     "use strict";
 
     var patterns = {};
-    var invalidTypes = [null, "file", "image", "submit", "fieldset", "reset", "button", "hidden"];
+    var invalidTypes = [null, "image", "submit", "fieldset", "reset", "button", "hidden"];
     var isValidInput = function(el)  {return invalidTypes.indexOf(el.get("type")) < 0};
 
     patterns.required = /\S/;
@@ -102,6 +102,12 @@
                     }
                     break;
 
+                case "file":
+                    if (required && this.get('files').length === 0) {
+                        errors.push("can't be empty");
+                    }
+                    break;
+
                 default:
                     var value = this.get("value");
                     // pattern/type validations ignore blank values