diff --git a/content/student/studentenoverlay.xul.php b/content/student/studentenoverlay.xul.php
index c3ab7d233..d95ad68a3 100644
--- a/content/student/studentenoverlay.xul.php
+++ b/content/student/studentenoverlay.xul.php
@@ -268,7 +268,7 @@ else
class="sortDirectionIndicator"
sort="rdf:http://www.technikum-wien.at/student/rdf#matr_nr" onclick="StudentTreeSort()"/>
-