diff --git a/AUTHORS b/AUTHORS
index cc8238884..22f527cc9 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -292,6 +292,7 @@ Christian Stigen Larsen cslarsen@gmail.com
 Christopher Paggen      cpaggen@cisco.com
 Chunhe Li               lichunhe@huawei.com
 Daniel Badea            daniel.badea@windriver.com
+Darragh O'Reilly        darragh.oreilly@hpe.com
 Dave Walker             DaveWalker@ubuntu.com
 David Evans             davidjoshuaevans@gmail.com
 David Palma             palma@onesource.pt
diff --git a/lib/mcast-snooping.c b/lib/mcast-snooping.c
index 7fd0b9a6a..f71321d2e 100644
--- a/lib/mcast-snooping.c
+++ b/lib/mcast-snooping.c
@@ -286,6 +286,7 @@ mcast_group_insert_bundle(struct mcast_snooping *ms OVS_UNUSED,
         b = xmalloc(sizeof *b);
         ovs_list_init(&b->bundle_node);
         b->port = port;
+        ms->need_revalidate = true;
     }
 
     b->expires = time_now() + idle_time;