diff --git a/debian/control b/debian/control
index 068030d..ee8b5af 100644
--- a/debian/control
+++ b/debian/control
@@ -95,7 +95,7 @@ Description: enhances misc security settings
  .
  All mitigations for the MDS vulnerability are enabled.
  .
- DCCP, SCTP, TIPC and RDS are blacklisted as they are rarely used and may have
+ DCCP, SCTP, TIPC, RDS and HDLC are blacklisted as they are rarely used and may have
  unknown vulnerabilities.
  .
  The kernel logs are restricted to root only.