diff --git a/htdocs/install/mysql/migration/2.9.0-3.0.0.sql b/htdocs/install/mysql/migration/2.9.0-3.0.0.sql
index 4110648111c..6cd9c6b7e6d 100644
--- a/htdocs/install/mysql/migration/2.9.0-3.0.0.sql
+++ b/htdocs/install/mysql/migration/2.9.0-3.0.0.sql
@@ -50,3 +50,6 @@ ALTER TABLE llx_facturedet_rec ADD COLUMN rang integer DEFAULT 0 AFTER special_c
 
 ALTER TABLE llx_actioncomm ADD COLUMN fk_supplier_order   integer;
 ALTER TABLE llx_actioncomm ADD COLUMN fk_supplier_invoice integer;
+
+
+ALTER TABLE llx_tmp_caisse MODIFY fk_article int(11) NOT NULL;