diff --git a/doc/src/sgml/ref/create_database.sgml b/doc/src/sgml/ref/create_database.sgml
index a839a8568c..233ff1755d 100644
--- a/doc/src/sgml/ref/create_database.sgml
+++ b/doc/src/sgml/ref/create_database.sgml
@@ -160,7 +160,8 @@ CREATE DATABASE <replaceable class="parameter">name</replaceable>
        <para>
         Can be overridden by setting <xref
         linkend="create-database-lc-collate"/>, <xref
-        linkend="create-database-lc-ctype"/>, or <xref
+        linkend="create-database-lc-ctype"/>, <xref
+        linkend="create-database-builtin-locale"/>, or <xref
         linkend="create-database-icu-locale"/> individually.
        </para>
        <para>
diff --git a/doc/src/sgml/ref/createdb.sgml b/doc/src/sgml/ref/createdb.sgml
index d3e815f659..b6d24261f9 100644
--- a/doc/src/sgml/ref/createdb.sgml
+++ b/doc/src/sgml/ref/createdb.sgml
@@ -150,6 +150,16 @@ PostgreSQL documentation
       </listitem>
      </varlistentry>
 
+     <varlistentry>
+      <term><option>--builtin-locale=<replaceable class="parameter">locale</replaceable></option></term>
+      <listitem>
+       <para>
+        Specifies the locale name when the builtin provider is used. Locale support
+        is described in <xref linkend="locale"/>.
+       </para>
+      </listitem>
+     </varlistentry>
+
      <varlistentry>
       <term><option>--icu-locale=<replaceable class="parameter">locale</replaceable></option></term>
       <listitem>