diff --git a/CHANGES b/CHANGES
index 961f3c35ff..ee5f6d52ee 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,9 @@
+5903.	[bug]		When named checks that the OPCODE in a response matches
+			that of the request, if there is a mismatch named logs
+			an error.  Some of those error messages incorrectly
+			used RCODE instead of OPCODE to lookup the nemonic.
+			This has been corrected. [GL !6420]
+
 5901.	[bug]		When processing a catalog zone member zone make sure
 			that there is no configured pre-existing forward-only
 			forward zone with that name. [GL #2506]