diff --git a/doc/arm/general.rst b/doc/arm/general.rst
index dba2df7c15..0ce4b0d80a 100644
--- a/doc/arm/general.rst
+++ b/doc/arm/general.rst
@@ -214,6 +214,10 @@ Resilient Against Forged Answers.* January 2009. [#rfc5452]_
 :rfc:`5702` - J. Jansen. *Use of SHA-2 Algorithms with RSA in DNSKEY and
 RRSIG Resource Records for DNSSEC.* October 2009.
 
+:rfc:`5891` - J. Klensin.
+*Internationalized Domain Names in Applications (IDNA): Protocol.*
+August 2010
+
 :rfc:`5936` - E. Lewis and A. Hoenes, Ed. *DNS Zone Transfer Protocol (AXFR).*
 June 2010.
 
diff --git a/doc/misc/rfc-compliance b/doc/misc/rfc-compliance
index da8f6d4b76..6e83bed650 100644
--- a/doc/misc/rfc-compliance
+++ b/doc/misc/rfc-compliance
@@ -78,6 +78,7 @@ or Best Current Practice (BCP) documents.  The list is non exhaustive.
   RFC5205
   RFC5452 [11]
   RFC5702
+  RFC5891 [7]
   RFC5936
   RFC5952
   RFC5966