diff --git a/www/errorreport.php b/www/errorreport.php
index deebd944e3907f05a385e140e8f2e9dfc16663ba..0983cafef656ea523c6a89024ae0ad5dcadcd430 100644
--- a/www/errorreport.php
+++ b/www/errorreport.php
@@ -8,7 +8,7 @@ $config = \SimpleSAML\Configuration::getInstance();
 if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
     // the message has been sent. Show error report page
 
-    $t = new \SimpleSAML\XHTML\Template($config, 'errorreport.php', 'errors');
+    $t = new \SimpleSAML\XHTML\Template($config, 'errorreport.twig', 'errors');
     $t->send();
     exit;
 }