diff --git a/CHANGES b/CHANGES
index 6880d4fa18..3533ead98b 100644
--- a/CHANGES
+++ b/CHANGES
@@ -12,6 +12,8 @@
 
 2640.	[security]	A specially crafted update packet will cause named
 			to exit. [RT #20000]
+
+2637.	[func]		Rationalize dnssec-signzone's signwithkey() calling.
 			[RT #19959]
 
 2635.	[bug]		isc_inet_ntop() incorrectly handled 0.0/16 addresses.