diff --git a/doc/bird.sgml b/doc/bird.sgml
index d20687be..384af835 100644
--- a/doc/bird.sgml
+++ b/doc/bird.sgml
@@ -2469,8 +2469,8 @@ using the following configuration parameters:
 
 	<tag><label id="bgp-enable-extended-messages">enable extended messages <m/switch/</tag>
 	The BGP protocol uses maximum message length of 4096 bytes. This option
-	provides an extension to allow extended messages with length up
-	to 65535 bytes. Default: off.
+	provides an extension (<rfc id="8654">) to allow extended messages with
+	length up to 65535 bytes. Default: off.
 
 	<tag><label id="bgp-capabilities">capabilities <m/switch/</tag>
 	Use capability advertisement to advertise optional capabilities. This is
diff --git a/proto/bgp/bgp.c b/proto/bgp/bgp.c
index e33d53f5..053016dd 100644
--- a/proto/bgp/bgp.c
+++ b/proto/bgp/bgp.c
@@ -100,7 +100,7 @@
  * RFC 8092 - BGP Large Communities Attribute
  * RFC 8203 - BGP Administrative Shutdown Communication
  * RFC 8212 - Default EBGP Route Propagation Behavior without Policies
- * draft-ietf-idr-bgp-extended-messages-27
+ * RFC 8654 - Extended Message Support for BGP
  * draft-ietf-idr-ext-opt-param-07
  * draft-uttaro-idr-bgp-persistence-04
  */