1 files changed, 1 insertions, 1 deletions

diff --git a/index.php b/index.php
index 41e710f..c7f1642 100644
--- a/index.php
+++ b/index.php
@@ -9,7 +9,7 @@ html_start();
 $h = array();
 
 # show all categorized hosts
-if (is_array($CONFIG['cat'])) {
+if (isset($CONFIG['cat']) && is_array($CONFIG['cat'])) {
         foreach($CONFIG['cat'] as $cat => $hosts) {
                 host_summary($cat, $hosts);
                 $h = array_merge($h, $hosts);