diff --git a/filemanager/inc/class.filemanager_hooks.inc.php b/filemanager/inc/class.filemanager_hooks.inc.php
index 9abd6962f9..d3812c4065 100644
--- a/filemanager/inc/class.filemanager_hooks.inc.php
+++ b/filemanager/inc/class.filemanager_hooks.inc.php
@@ -235,7 +235,11 @@ class filemanager_hooks
 			);
 		}
 		$editorLink = self::getEditorLink();
-
+		$mimes = array();
+		foreach ($editorLink['mime'] as $mime => $value)
+		{
+			$mimes[$mime] = $value['ext'];
+		}
 		$settings += array (
 			'sections.2' => array(
 				'type'  => 'section',
@@ -258,7 +262,7 @@ class filemanager_hooks
 				'label'  => lang('Excludes selected mime types'),
 				'help'   => lang('Excludes selected mime types from being opened by editor'),
 				'name'   => 'collab_excluded_mimes',
-				'values' => array_combine(array_keys($editorLink['mime']), array_keys($editorLink['mime'])),
+				'values' => $mimes,
 				'default' => '',
 			),
 			'merge_open_handler' => array(