diff --git a/doc/src/sgml/ref/pg_checksums.sgml b/doc/src/sgml/ref/pg_checksums.sgml
index 8e7807f86b..1dd4e54ff1 100644
--- a/doc/src/sgml/ref/pg_checksums.sgml
+++ b/doc/src/sgml/ref/pg_checksums.sgml
@@ -47,8 +47,8 @@ PostgreSQL documentation
 
   <para>
    When verifying checksums, every file in the cluster is scanned. When
-   enabling checksums, every file in the cluster is rewritten. Disabling
-   checksums only updates the file <filename>pg_control</filename>.
+   enabling checksums, every file in the cluster is rewritten in-place.
+   Disabling checksums only updates the file <filename>pg_control</filename>.
   </para>
  </refsect1>