diff --git a/usr/local/www/carp_status.php b/usr/local/www/carp_status.php
index 98fd7efde7..10ad21170f 100755
--- a/usr/local/www/carp_status.php
+++ b/usr/local/www/carp_status.php
@@ -37,6 +37,7 @@ function gentitle_pkg($pgname) {
 unset($interface_arr_cache);
 unset($carp_interface_count_cache);
 unset($carp_query);
+unset($interface_ip_arr_cache);
 
 $status = get_carp_status();
 if($_POST['disablecarp'] <> "") {