diff --git a/doc/src/sgml/manage-ag.sgml b/doc/src/sgml/manage-ag.sgml
index 192c500994..a02ef632c3 100644
--- a/doc/src/sgml/manage-ag.sgml
+++ b/doc/src/sgml/manage-ag.sgml
@@ -498,7 +498,7 @@ CREATE TABLE foo(i int);
   <para>
    Two tablespaces are automatically created when the database cluster
    is initialized.  The
-   <literal>pg_global</literal> tablespace is used for shared system catalogs. The
+   <literal>pg_global</literal> tablespace is used only for shared system catalogs. The
    <literal>pg_default</literal> tablespace is the default tablespace of the
    <literal>template1</literal> and <literal>template0</literal> databases (and, therefore,
    will be the default tablespace for other databases as well, unless