diff --git a/filesystem/File.php b/filesystem/File.php
index 65ba2cfc2f2..380f124a9c5 100644
--- a/filesystem/File.php
+++ b/filesystem/File.php
@@ -240,7 +240,7 @@ function TreeTitle() {
 	 * @return string
 	 */
 	function getTreeTitle() {
-		return $this->Title;
+		return Convert::raw2xml($this->Title);
 	}
 
 	/**