diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index c421d89edff..d768ea065c5 100644
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -1156,7 +1156,7 @@ description | Waiting for a newly initialized WAL file to reach durable storage
    <note>
     <para>
      Extensions can add <literal>Extension</literal>,
-     <literal>InjectionPoint</literal>. and <literal>LWLock</literal> events
+     <literal>InjectionPoint</literal>, and <literal>LWLock</literal> events
      to the lists shown in <xref linkend="wait-event-extension-table"/> and
      <xref linkend="wait-event-lwlock-table"/>. In some cases, the name
      of an <literal>LWLock</literal> assigned by an extension will not be