diff --git a/js/main.js b/js/main.js
index bb2f4f60..0431fb09 100644
--- a/js/main.js
+++ b/js/main.js
@@ -106,12 +106,9 @@ var gdrive = (function($) {
 			'params' : { 'uploadType' : 'multipart', },
 			'headers' : { 'Content-Type' : 'multipart/mixed; boundary="'
 				+ boundary + '"', }, 'body' : multipartRequestBody, });
-		if (!callback) {
-			callback = function(file) {
-				console.log(file);
-			};
-		}
-		request.execute(callback);
+		request.execute(function(file) {
+			console.log(file);
+		});
 	};
 
 	return gdrive;