diff --git a/reference/pgsql/functions/pg-update.xml b/reference/pgsql/functions/pg-update.xml
index f5b40857f..0e013dd41 100644
--- a/reference/pgsql/functions/pg-update.xml
+++ b/reference/pgsql/functions/pg-update.xml
@@ -78,6 +78,7 @@
        <constant>PGSQL_DML_NO_CONV</constant>,
        <constant>PGSQL_DML_ESCAPE</constant>,
        <constant>PGSQL_DML_EXEC</constant>,
+       <constant>PGSQL_DML_ASYNC</constant> или
        <constant>PGSQL_DML_STRING</constant>, либо их комбинация. 
        Если <parameter>options</parameter> содержит 
        <constant>PGSQL_DML_STRING</constant>, функция вернет строку. Если установлены <constant>PGSQL_DML_NO_CONV</constant>