diff --git a/serf/broadcast.go b/serf/broadcast.go
index d20728f3f..751cf184b 100644
--- a/serf/broadcast.go
+++ b/serf/broadcast.go
@@ -16,6 +16,9 @@ func (b *broadcast) Invalidates(other memberlist.Broadcast) bool {
 	return false
 }
 
+// implements memberlist.UniqueBroadcast
+func (b *broadcast) UniqueBroadcast() {}
+
 func (b *broadcast) Message() []byte {
 	return b.msg
 }