diff --git a/htdocs/install/mysql/migration/16.0.0-17.0.0.sql b/htdocs/install/mysql/migration/16.0.0-17.0.0.sql
index 597681c4ad5..e72fc1b8dcd 100644
--- a/htdocs/install/mysql/migration/16.0.0-17.0.0.sql
+++ b/htdocs/install/mysql/migration/16.0.0-17.0.0.sql
@@ -47,6 +47,9 @@ ALTER TABLE llx_expedition ADD COLUMN billed smallint    DEFAULT 0;
 
 ALTER TABLE llx_accounting_system MODIFY COLUMN pcg_version varchar(32) NOT NULL;
 
+ALTER TABLE llx_user DROP COLUMN idpers1;
+ALTER TABLE llx_user DROP COLUMN idpers2;
+ALTER TABLE llx_user DROP COLUMN idpers3;
 
 
 -- v17