diff --git a/doc/notes/notes-9.18.12.rst b/doc/notes/notes-9.18.12.rst
index 7c18820f9b..be2046ae50 100644
--- a/doc/notes/notes-9.18.12.rst
+++ b/doc/notes/notes-9.18.12.rst
@@ -43,6 +43,9 @@ Bug Fixes
 - Pointing :any:`parental-agents` to a resolver did not work because the
   RD bit was not set on DS requests. This has been fixed. :gl:`#3783`
 
+- Building BIND 9 failed when the ``--enable-dnsrps`` switch for
+  ``./configure`` was used. This has been fixed. :gl:`#3827`
+
 Known Issues
 ~~~~~~~~~~~~