diff --git a/Reference-Manual.mediawiki b/Reference-Manual.mediawiki
index 15b4b36..50d7853 100644
--- a/Reference-Manual.mediawiki
+++ b/Reference-Manual.mediawiki
@@ -1217,6 +1217,8 @@ The possible values are:
 
 '''Version:''' 2.7 
 
+The rules hitting the threshold can be accessed via the collection PERF_RULES.
+
 == SecRuleRemoveById ==
 '''Description:''' Removes the matching rules from the current configuration context.