diff --git a/wiki.php b/wiki.php
index ae923ca..aa0a446 100644
--- a/wiki.php
+++ b/wiki.php
@@ -12,7 +12,7 @@ print "<!DOCTYPE html>
 <html lang='en'>
 	<head>
 		<title>$site_name - $page</title>
-		<link rel='stylesheet' type='text/css' href='$site_root/includes/site.css'>
+		<link rel='stylesheet' type='text/css' href='" + $site_root + "includes/site.css'>
 	</head>
 	<body>";
 echo ( shell_exec("/usr/bin/pandoc $doc_root/includes/header.md") );
