diff --git a/doc/src/sgml/ref/alter_subscription.sgml b/doc/src/sgml/ref/alter_subscription.sgml
index ad93553a1d..964fcbb8ff 100644
--- a/doc/src/sgml/ref/alter_subscription.sgml
+++ b/doc/src/sgml/ref/alter_subscription.sgml
@@ -277,6 +277,13 @@ ALTER SUBSCRIPTION <replaceable class="parameter">name</replaceable> RENAME TO <
     </listitem>
    </varlistentry>
   </variablelist>
+
+  <para>
+   When specifying a parameter of type <type>boolean</type>, the
+   <literal>=</literal> <replaceable class="parameter">value</replaceable>
+   part can be omitted, which is equivalent to
+   specifying <literal>TRUE</literal>.
+  </para>
  </refsect1>
 
  <refsect1>
diff --git a/doc/src/sgml/ref/create_publication.sgml b/doc/src/sgml/ref/create_publication.sgml
index e229384e6f..370dac2ccf 100644
--- a/doc/src/sgml/ref/create_publication.sgml
+++ b/doc/src/sgml/ref/create_publication.sgml
@@ -217,6 +217,13 @@ CREATE PUBLICATION <replaceable class="parameter">name</replaceable>
    </varlistentry>
 
   </variablelist>
+
+  <para>
+   When specifying a parameter of type <type>boolean</type>, the
+   <literal>=</literal> <replaceable class="parameter">value</replaceable>
+   part can be omitted, which is equivalent to
+   specifying <literal>TRUE</literal>.
+  </para>
  </refsect1>
 
  <refsect1>
diff --git a/doc/src/sgml/ref/create_subscription.sgml b/doc/src/sgml/ref/create_subscription.sgml
index eba72c6af6..51c45f17c7 100644
--- a/doc/src/sgml/ref/create_subscription.sgml
+++ b/doc/src/sgml/ref/create_subscription.sgml
@@ -354,6 +354,13 @@ CREATE SUBSCRIPTION <replaceable class="parameter">subscription_name</replaceabl
     </listitem>
    </varlistentry>
   </variablelist>
+
+  <para>
+   When specifying a parameter of type <type>boolean</type>, the
+   <literal>=</literal> <replaceable class="parameter">value</replaceable>
+   part can be omitted, which is equivalent to
+   specifying <literal>TRUE</literal>.
+  </para>
  </refsect1>
 
  <refsect1 id="sql-createsubscription-notes" xreflabel="Notes">