diff --git a/htdocs/install/mysql/migration/14.0.0-15.0.0.sql b/htdocs/install/mysql/migration/14.0.0-15.0.0.sql
index 28d484c7e99..35f5221e34f 100644
--- a/htdocs/install/mysql/migration/14.0.0-15.0.0.sql
+++ b/htdocs/install/mysql/migration/14.0.0-15.0.0.sql
@@ -35,6 +35,8 @@
 
 -- v15
 
+ALTER TABLE llx_knowledgemanagement_knowledgerecord ADD lang varchar(6);
+
 CREATE TABLE llx_categorie_ticket
 (
   fk_categorie  integer NOT NULL,