diff --git a/doc/repmgr-standby-follow.sgml b/doc/repmgr-standby-follow.sgml
index 34b67c70..e7a07306 100644
--- a/doc/repmgr-standby-follow.sgml
+++ b/doc/repmgr-standby-follow.sgml
@@ -92,7 +92,7 @@
       A <literal>standby_follow</literal> <link linkend="event-notifications">event notification</link> will be generated.
     </para>
     <para>
-      If provided, &repmgr; will subsitute the placeholders <literal>%p</literal> with the node ID of the primary
+      If provided, &repmgr; will substitute the placeholders <literal>%p</literal> with the node ID of the primary
       being followed, <literal>%c</literal> with its <literal>conninfo</literal> string, and
       <literal>%a</literal> with its node name.
     </para>
diff --git a/doc/repmgr-standby-register.sgml b/doc/repmgr-standby-register.sgml
index 9e5f7b76..676670b1 100644
--- a/doc/repmgr-standby-register.sgml
+++ b/doc/repmgr-standby-register.sgml
@@ -173,7 +173,7 @@
     </para>
 
     <para>
-      If provided, &repmgr; will subsitute the placeholders <literal>%p</literal> with the node ID of the
+      If provided, &repmgr; will substitute the placeholders <literal>%p</literal> with the node ID of the
       primary node, <literal>%c</literal> with its <literal>conninfo</literal> string, and
       <literal>%a</literal> with its node name.
     </para>