diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 4eef970d41..7398806203 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3085,7 +3085,7 @@ include_dir 'conf.d'
       </term>
       <listitem>
        <para>
-        Maximum size to let the WAL grow to between automatic WAL
+        Maximum size to let the WAL grow during automatic WAL
         checkpoints. This is a soft limit; WAL size can exceed
         <varname>max_wal_size</varname> under special circumstances, such as
         heavy load, a failing <varname>archive_command</varname>, or a high