diff --git a/main/document/create_audio.php b/main/document/create_audio.php
index b4ec0ba30a..604f3c7496 100644
--- a/main/document/create_audio.php
+++ b/main/document/create_audio.php
@@ -18,6 +18,7 @@ require_once '../inc/global.inc.php';
 $_SESSION['whereami'] = 'document/createaudio';
 $this_section = SECTION_COURSES;
 
+require_once 'document.inc.php';
 require_once api_get_path(LIBRARY_PATH).'groupmanager.lib.php';
 
 $nameTools = get_lang('CreateAudio');