diff --git a/doc/src/sgml/ref/pgupgrade.sgml b/doc/src/sgml/ref/pgupgrade.sgml
index 0c4b16d32c..26e3f9ea2b 100644
--- a/doc/src/sgml/ref/pgupgrade.sgml
+++ b/doc/src/sgml/ref/pgupgrade.sgml
@@ -382,11 +382,11 @@ NET STOP postgresql-&majorversion;
requires that the old and new cluster data directories be in the
same file system. (Tablespaces and pg_wal can be on
different file systems.)
- The clone mode provides the same speed and disk space advantages but will
- not leave the old cluster unusable after the upgrade. The clone mode
- also requires that the old and new data directories be in the same file
- system. The clone mode is only available on certain operating systems
- and file systems.
+ Clone mode provides the same speed and disk space advantages but
+ does not cause the old cluster to be unusable once the new cluster
+ is started. Clone mode also requires that the old and new data
+ directories be in the same file system. This mode is only available
+ on certain operating systems and file systems.