diff --git a/cgi-bin/vorbereitung/walthorz.php b/cgi-bin/vorbereitung/walthorz.php
index 359e6b1..f5ae61f 100644
--- a/cgi-bin/vorbereitung/walthorz.php
+++ b/cgi-bin/vorbereitung/walthorz.php
@@ -2,7 +2,7 @@
 
 $val = $_REQUEST['zahl'];
 
-if ($val == 420) {
+if ($val == "420") {
         header("Location: waltermode2.html");
 } else {
         header("Location: waltermode.html");