diff --git a/apps/files/js/fileactions.js b/apps/files/js/fileactions.js
index 0cf4a05222585c4e69fc40bf5e35257e97e927e0..1cf80352bef2e4fdbcaaf7b4aaf1358bcfdede6a 100644
--- a/apps/files/js/fileactions.js
+++ b/apps/files/js/fileactions.js
@@ -157,7 +157,7 @@ $(document).ready(function(){
 		var downloadScope = 'file';
 	}
 	FileActions.register(downloadScope,'Download', OC.PERMISSION_READ, function(){return OC.imagePath('core','actions/download');},function(filename){
-		window.location=OC.filePath('files', 'ajax', 'download.php') + '&files='+encodeURIComponent(filename)+'&dir='+encodeURIComponent($('#dir').val());
+		window.location=OC.filePath('files', 'ajax', 'download.php') + '?files='+encodeURIComponent(filename)+'&dir='+encodeURIComponent($('#dir').val());
 	});
 });
 
diff --git a/core/js/js.js b/core/js/js.js
index 130d413296ebbfb9d9b254b613e4295081404692..6ed50b42bd5097ba47295c357451c9c9330825ea 100644
--- a/core/js/js.js
+++ b/core/js/js.js
@@ -62,7 +62,7 @@ function escapeHTML(s) {
 * @return string
 */
 function fileDownloadPath(dir, file) {
-	return OC.filePath('files', 'ajax', 'download.php')+'&files='+encodeURIComponent(file)+'&dir='+encodeURIComponent(dir);
+	return OC.filePath('files', 'ajax', 'download.php')+'?files='+encodeURIComponent(file)+'&dir='+encodeURIComponent(dir);
 }
 
 var OC={