diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 571ad7c593..6b941c3584 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -6230,7 +6230,7 @@ SELECT regexp_matches('abc01234xyz', '(?:(.*?)(\d+)(.*)){1,1}');
       <para>
        Here is a more
        complex example:
-       <literal>to_timestamp('15:12:02.020.001230', 'HH:MI:SS.MS.US')</literal>
+       <literal>to_timestamp('15:12:02.020.001230', 'HH24:MI:SS.MS.US')</literal>
        is 15 hours, 12 minutes, and 2 seconds + 20 milliseconds +
        1230 microseconds = 2.021230 seconds.
       </para>