diff --git a/doc/src/sgml/ref/create_table.sgml b/doc/src/sgml/ref/create_table.sgml
index 099f0263f68..7da424100be 100644
--- a/doc/src/sgml/ref/create_table.sgml
+++ b/doc/src/sgml/ref/create_table.sgml
@@ -1,5 +1,5 @@
@@ -439,7 +439,9 @@ and table_constraint is:
RESTRICT
- Same as NO ACTION.
+ Same as NO ACTION except that this action
+ will not be deferred even if the rest of the constraint is
+ deferrable and deferred.