diff --git a/CHANGES b/CHANGES
index 5032e75f1a..9372712159 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+3574.	[doc]		The 'hostname' keyword was missing from server-id
+			description in the named.conf man page. [RT #33476]
+
 	--- 9.9.3 released ---
 
 3568.	[cleanup]	Add a product description line to the version file,
diff --git a/bin/named/named.conf.docbook b/bin/named/named.conf.docbook
index d778706930..35cd6276dd 100644
--- a/bin/named/named.conf.docbook
+++ b/bin/named/named.conf.docbook
@@ -219,7 +219,7 @@ options {
 	random-device <replaceable>quoted_string</replaceable>;
 	recursive-clients <replaceable>integer</replaceable>;
 	serial-query-rate <replaceable>integer</replaceable>;
-	server-id ( <replaceable>quoted_string</replaceable> | none );
+	server-id ( <replaceable>quoted_string</replaceable> | hostname | none );
 	stacksize <replaceable>size</replaceable>;
 	statistics-file <replaceable>quoted_string</replaceable>;
 	statistics-interval <replaceable>integer</replaceable>; // not yet implemented