diff --git a/soap/lehrveranstaltung.wsdl.php b/soap/lehrveranstaltung.wsdl.php
index 3dec3d8e9..e0ec164ba 100755
--- a/soap/lehrveranstaltung.wsdl.php
+++ b/soap/lehrveranstaltung.wsdl.php
@@ -1,6 +1,6 @@
 <?php 
 require_once('../config/vilesci.config.inc.php');
-header("Content-type: text/plain");
+header("Content-type: text/xml");
 echo "<?xml version='1.0' encoding='utf-8' ?>";
 ?>
 <wsdl:definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" 
diff --git a/soap/student.wsdl.php b/soap/student.wsdl.php
index 97a2de0a1..b27c11c4e 100755
--- a/soap/student.wsdl.php
+++ b/soap/student.wsdl.php
@@ -1,6 +1,6 @@
 <?php 
 require_once('../config/vilesci.config.inc.php');
-header("Content-type: text/plain");
+header("Content-type: text/xml");
 echo "<?xml version='1.0' encoding='utf-8' ?>";
 ?>
 <wsdl:definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"