diff --git a/cosmogramme/sql/patch/patch_235.php b/cosmogramme/sql/patch/patch_235.php
index 15174eb004fecb2b0f17ef1ad02c30b453b23891..1f22b6c8894f6b6ae871e579cd1d5056fa6ebe13 100644
--- a/cosmogramme/sql/patch/patch_235.php
+++ b/cosmogramme/sql/patch/patch_235.php
@@ -6,7 +6,5 @@ $adapter->query('CREATE TABLE `album_usage_constraints` ( '
 								. 'usage_type varchar(4) not null,'
 								. 'serialized_datas text not null,'
 								. 'primary key (id),'
-								. 'key (`value`)'
-								. ') engine=MyISAM default charset=utf8');
-
-$adapter->query('ALTER TABLE album_usage_constraints ADD INDEX (album_id)');
\ No newline at end of file
+								. 'key (`album_id`)'
+								. ') engine=MyISAM default charset=utf8');
\ No newline at end of file