diff --git a/htdocs/install/mysql/tables/llx_inventory.key.sql b/htdocs/install/mysql/tables/llx_inventory.key.sql
index b6c41f8aef1..a20fe45fe56 100644
--- a/htdocs/install/mysql/tables/llx_inventory.key.sql
+++ b/htdocs/install/mysql/tables/llx_inventory.key.sql
@@ -20,4 +20,4 @@
 ALTER TABLE llx_inventory ADD UNIQUE INDEX uk_inventory_ref (ref, entity);
 
 ALTER TABLE llx_inventory ADD INDEX idx_inventory_tms (tms);
-ALTER TABLE llx_inventory ADD INDEX idx_inventory_datec (datec);
+ALTER TABLE llx_inventory ADD INDEX idx_inventory_date_creation (date_creation);