diff --git a/usr/local/www/diag_dhcp_leases.php b/usr/local/www/diag_dhcp_leases.php
index 0a0292df32..4f72865ab7 100755
--- a/usr/local/www/diag_dhcp_leases.php
+++ b/usr/local/www/diag_dhcp_leases.php
@@ -92,7 +92,7 @@ function remove_duplicate($array, $field)
 {
   foreach ($array as $sub)
    $cmp[] = $sub[$field];
-  $unique = array_unique($cmp);
+  $unique = array_unique(array_reverse($cmp,true));
   foreach ($unique as $k => $rien)
    $new[] = $array[$k];
   return $new;