diff --git a/README.md b/README.md
index ee87ef2..03e5094 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ are available in one of the list. The list can be globally enabled or disabled i
 
 - [lists/empty-hashes](lists/empty-hashes) - hash values of empty files
 - [lists/google](lists/google) - known domains and hostnames from Google
+- [lists/multicast](lists/multicast) - known IPv4 multicast CIDR blocks
 - [lists/public-dns](lists/public-dns) - IP addresses of public DNS resolver
 - [lists/rfc1918](lists/rfc1918) - RFC 1918 network subnets
 - [lists/second-level-tlds](lists/second-level-tlds) - Mozilla list of second level top-level domains