diff --git a/wiki.php b/wiki.php
index e4e1121..3bcfe15 100644
--- a/wiki.php
+++ b/wiki.php
@@ -8,7 +8,10 @@ include('config.php');
 include('parsedown-1.7.3/Parsedown.php');
 
 $page = $_GET['page'];
-$style = $_GET['style'];
+if (isset($_GET['style']))
+{
+	 $style = $_GET['style'];
+}
 $Parsedown = new Parsedown();
 $Parsedown->setSafeMode(true);
 
@@ -16,7 +19,7 @@ if ( $page == "") {
 	$page = "main";
 	}
 
-if ( $style == "") {
+if (empty($style)) {
 	if ( $site_style == "") {
 		$site_style="site";
 	}