diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index cf4e82e8b5..a382258aee 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3098,7 +3098,7 @@ include_dir 'conf.d'
       <listitem>
        <para>
         When this parameter is <literal>on</literal>, the <productname>PostgreSQL</productname>
-        server compresses a full page image written to WAL when
+        server compresses full page images written to WAL when
         <xref linkend="guc-full-page-writes"/> is on or during a base backup.
         A compressed page image will be decompressed during WAL replay.
         The default value is <literal>off</literal>.