diff --git a/install.php b/install.php
index 8f47eefb7a..3c1c4a5108 100644
--- a/install.php
+++ b/install.php
@@ -378,7 +378,7 @@
 if ($nextstage == ADMIN or $INSTALL['stage'] == ADMIN) {
     if (!ini_get('allow_url_fopen')) {
         $nextstage = ($goforward) ? ENVIRONMENT : DATABASE;
-    } else if (($fh = @fopen($INSTALL['wwwrootform'].'/'.$INSTALL['admindirname'].'/site.html', 'r')) !== false) {
+    } else if (($fh = @fopen($INSTALL['wwwrootform'].'/'.$INSTALL['admindirname'].'/environment.xml', 'r')) !== false) {
         $nextstage = ($goforward) ? ENVIRONMENT : DATABASE;
         fclose($fh);
     } else {