diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index ac77a13d2ea2cc2417e45780904c06dc0d6e3bcc..ebe94f2cab9811e62f0ea1d64c0d6c75838d0367 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1201,6 +1201,11 @@ xfrm4_gc_thresh - INTEGER
 	destination cache entries.  At twice this value the system will
 	refuse new allocations.
 
+igmp_link_local_mcast_reports - BOOLEAN
+	Enable IGMP reports for link local multicast groups in the
+	224.0.0.X range.
+	Default TRUE
+
 Alexey Kuznetsov.
 kuznet@ms2.inr.ac.ru