diff --git a/include/admin/installer.inc.php b/include/admin/installer.inc.php
index b85e2a13..23b3ac05 100644
--- a/include/admin/installer.inc.php
+++ b/include/admin/installer.inc.php
@@ -30,7 +30,7 @@ $data['basedir'] = $basedir;
 $data['phpversion'] = phpversion();
 $data['versionInstalled'] = $serendipity['versionInstalled'];
 $data['templatePath']  = $serendipity['templatePath'];
-$data['serendipityHTTPPath'] = dirname($_SERVER['PHP_SELF']) . '/';
+$data['serendipityHTTPPath'] = str_replace('//', '/', dirname($_SERVER['PHP_SELF']) . '/');
 
 /**
  * Checks a return code constant if it's successfull or an error and return HTML code