diff --git a/htdocs/install/mysql/migration/3.9.0-4.0.0.sql b/htdocs/install/mysql/migration/3.9.0-4.0.0.sql
index 2bb44238a60..67e3b3af448 100644
--- a/htdocs/install/mysql/migration/3.9.0-4.0.0.sql
+++ b/htdocs/install/mysql/migration/3.9.0-4.0.0.sql
@@ -541,4 +541,4 @@ INSERT INTO llx_c_forme_juridique (fk_pays, code, libelle, active) VALUES (178,
 -- VMYSQL4.1 ALTER TABLE llx_establishment CHANGE COLUMN fk_user_mod fk_user_mod integer NULL;
 -- VPGSQL8.2 ALTER TABLE llx_establishment ALTER COLUMN fk_user_mod DROP NOT NULL;
 
-ALTER TABLE llx_multicurrency_rate ADD COLUMN entity integer;
\ No newline at end of file
+ALTER TABLE llx_multicurrency_rate ADD COLUMN entity integer DEFAULT 1;
\ No newline at end of file