diff --git a/htdocs/install/mysql/migration/12.0.0-13.0.0.sql b/htdocs/install/mysql/migration/12.0.0-13.0.0.sql
index 55c2d03f2c1..706678350af 100644
--- a/htdocs/install/mysql/migration/12.0.0-13.0.0.sql
+++ b/htdocs/install/mysql/migration/12.0.0-13.0.0.sql
@@ -37,6 +37,8 @@ ALTER TABLE llx_prelevement_facture_demande ADD INDEX idx_prelevement_facture_de
 
 ALTER TABLE llx_bom_bom MODIFY COLUMN duration double(24,8);
 
+ALTER TABLE llx_document_model MODIFY COLUMN type varchar(64);
+
 
 -- For v13