diff --git a/doc/src/sgml/ref/alter_table.sgml b/doc/src/sgml/ref/alter_table.sgml
index 56ea830..4c61c44 100644
--- a/doc/src/sgml/ref/alter_table.sgml
+++ b/doc/src/sgml/ref/alter_table.sgml
@@ -1398,7 +1398,7 @@ ALTER TABLE cities
   <para>
    Detach a partition from partitioned table:
 <programlisting>
-ALTER TABLE cities
+ALTER TABLE measurement
     DETACH PARTITION measurement_y2015m12;
 </programlisting></para>