diff --git a/dhcp.spec b/dhcp.spec
index 451db1b..b5d7ea3 100644
--- a/dhcp.spec
+++ b/dhcp.spec
@@ -384,6 +384,7 @@ rm -rf includes/isc-dhcp
 %patch42 -p1 -b .stateless-DUID-LLT
 
 # send unicast request/release via correct interface (#800561, #1177351)
+# (Submitted to dhcp-bugs@isc.org - [ISC-Bugs #30544])
 %patch43 -p1 -b .bind-iface
 
 # to build against bind-9.9.6