diff --git a/content/student/studentdetailoverlay.xul.php b/content/student/studentdetailoverlay.xul.php
index 0a014b20a..7f45342dc 100644
--- a/content/student/studentdetailoverlay.xul.php
+++ b/content/student/studentdetailoverlay.xul.php
@@ -509,7 +509,7 @@ echo '<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>';
 				<caption label="Status" />
 						<tree id="student-prestudent-tree-rolle" seltype="single" hidecolumnpicker="false" flex="1"
 								datasources="rdf:null" ref="http://www.technikum-wien.at/prestudentrolle/liste"
-								style="margin-left:10px;margin-right:10px;margin-bottom:5px;" height="200px" enableColumnDrag="true"
+								style="margin-left:10px;margin-right:10px;margin-bottom:5px;min-height: 200px" height="200px" enableColumnDrag="true"
 								flags="dont-build-content"
 								context="student-prestudent-rolle-tree-popup"
 								ondblclick="StudentRolleBearbeiten()"