diff --git a/lib/response.php b/lib/response.php
index 3765f509c184673c196246be765b00e0dc82e02f..9edae3603b279d5b25371b2f783d43de4f8bcc82 100644
--- a/lib/response.php
+++ b/lib/response.php
@@ -146,7 +146,7 @@ class OC_Response {
 	* @brief Send file as response, checking and setting caching headers
 	* @param $filepath of file to send
 	*/
-	static public function sendFile($filepath=null) {
+	static public function sendFile($filepath) {
 		$fp = fopen($filepath, 'rb');
 		if ($fp) {
 			self::setLastModifiedHeader(filemtime($filepath));