diff --git a/doc/src/sgml/ref/create_index.sgmlin b/doc/src/sgml/ref/create_index.sgmlin
index 27b277e1e34e1cd9f44ebd693202f80aa6538cae..f54e17973eb059d3ca59f177c1c91a6a957d9a4c 100644
--- a/doc/src/sgml/ref/create_index.sgmlin
+++ b/doc/src/sgml/ref/create_index.sgmlin
@@ -19,7 +19,7 @@ CREATE [ UNIQUE ] INDEX [ CONCURRENTLY ] [ IF NOT EXISTS ] [ [schema_name.] inde
     [ WHERE predicate ];
 CREATE [ UNIQUE ] INDEX [ IF NOT EXISTS ] [ [schema_name.] index_name ] ON table_name [ USING method ]
     ( { { column_name | ( expression ) } [ COLLATE collation ] [ opclass ] [ ASC | DESC ] [ NULLS LAST ] } [, ...] )
-    [ LOCAL [ ( { PARTITION index_partition_name | SUBPARTITION index_subpartition_name [ TABLESPACE index_partition_tablespace ] } [, ...] ) ] | GLOBAL ]
+    [ LOCAL [ ( { PARTITION index_partition_name [ ( SUBPARTITION index_subpartition_name [, ...] ) ] [ TABLESPACE index_partition_tablespace ] } [, ...] ) ] | GLOBAL ]
     [ INCLUDE ( { column_name | ( expression ) }[, ...] ) ]
     [ WITH ( { storage_parameter = value } [, ...] ) ]
     [ TABLESPACE tablespace_name ]