diff --git a/doc/src/sgml/ref/pgupgrade.sgml b/doc/src/sgml/ref/pgupgrade.sgml
index 20efdd7..74eaaee 100644
--- a/doc/src/sgml/ref/pgupgrade.sgml
+++ b/doc/src/sgml/ref/pgupgrade.sgml
@@ -406,10 +406,10 @@ NET STOP postgresql-&majorversion;
     <para>
      The <option>--jobs</option> option allows multiple CPU cores to be used
      for copying/linking of files and to dump and reload database schemas
-     in parallel;  a good place to start is the maximum of the number of
-     CPU cores and tablespaces.  This option can dramatically reduce the
-     time to upgrade a multi-database server running on a multiprocessor
-     machine.
+     in parallel;  a good place to start is the maximum of: the number of
+     CPU cores or tablespaces.  This option can dramatically reduce the
+     time to upgrade a server with multiple tablespaces running on a 
+     multiprocessor machine.
     </para>
 
     <para>