diff --git a/doc/src/sgml/ref/alter_materialized_view.sgml b/doc/src/sgml/ref/alter_materialized_view.sgml
index c6a132de068..862921fd41d 100644
--- a/doc/src/sgml/ref/alter_materialized_view.sgml
+++ b/doc/src/sgml/ref/alter_materialized_view.sgml
@@ -98,7 +98,7 @@ ALTER MATERIALIZED VIEW ALL IN TABLESPACE <replaceable class="parameter">name</r
      <term><replaceable class="parameter">column_name</replaceable></term>
      <listitem>
       <para>
-       Name of a new or existing column.
+       Name of an existing column.
       </para>
      </listitem>
     </varlistentry>