diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml
index f4617b67e95..f98e282741f 100644
--- a/doc/src/sgml/catalogs.sgml
+++ b/doc/src/sgml/catalogs.sgml
@@ -1227,8 +1227,7 @@
       <entry><type>bool</type></entry>
       <entry></entry>
       <entry>
-       This represents a not-null constraint.  It is possible to
-       change this column to enable or disable the constraint.
+       This represents a not-null constraint.
       </entry>
      </row>