diff --git a/doc/src/sgml/ddl.sgml b/doc/src/sgml/ddl.sgml
index 3765547cd22..6eb07ad1e11 100644
--- a/doc/src/sgml/ddl.sgml
+++ b/doc/src/sgml/ddl.sgml
@@ -3415,7 +3415,7 @@ ALTER TABLE measurement ATTACH PARTITION measurement_y2008m02
define any check constraints on this table, unless you intend them
to be applied equally to all partitions. There is no point in
defining any indexes or unique constraints on it, either. For our
- example, master table is the measurement
+ example, the master table is the measurement
table as originally defined.