diff --git a/data/supported-extensions b/data/supported-extensions
index 1e5d9c6d..fc1aca48 100644
--- a/data/supported-extensions
+++ b/data/supported-extensions
@@ -52,6 +52,7 @@ lzf 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1 8.2 8.3 8.4
 mailparse 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1 8.2 8.3 8.4
 maxminddb 7.2 7.3 7.4 8.0 8.1 8.2 8.3 8.4
 mcrypt 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1 8.2 8.3
+md4c 8.0 8.1 8.2 8.3 8.4
 memcache 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1 8.2 8.3 8.4
 memcached 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1 8.2 8.3 8.4
 memprof 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1 8.2 8.3 8.4