diff --git a/doc/src/sgml/ref/create_type.sgml b/doc/src/sgml/ref/create_type.sgml
index 64880d8076..e85c94dbe7 100644
--- a/doc/src/sgml/ref/create_type.sgml
+++ b/doc/src/sgml/ref/create_type.sgml
@@ -1,5 +1,5 @@
@@ -452,8 +452,8 @@ CREATE TYPE name
Notes
- User-defined type names cannot begin with the underscore character
- (_) and can only be 62 characters
+ User-defined type names should not begin with the underscore character
+ (_) and should only be 62 characters
long (or in general NAMEDATALEN - 2, rather than
the NAMEDATALEN - 1 characters allowed for other
names). Type names beginning with underscore are reserved for