diff --git a/plugins/webstats/js/stats.js b/plugins/webstats/js/stats.js
index caf90bfda..6fd849517 100644
--- a/plugins/webstats/js/stats.js
+++ b/plugins/webstats/js/stats.js
@@ -2383,6 +2383,7 @@ var html = '<div>\
                         <option value="500">500</option>\
                         <option value="502">502</option>\
                         <option value="503">503</option>\
+                        <option value="499">499</option>\
                         <option value="404">404</option>\
                         <option value="301">301</option>\
                         <option value="302">302</option>\