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 c1f96ca9d3e..b0f9dc6ce56 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
@@ -78,4 +78,4 @@ ALTER TABLE llx_ticket ADD email_date datetime after email_msgid;
 
 INSERT INTO llx_const (name, entity, value, type, visible) VALUES ('MAIN_SECURITY_MAX_IMG_IN_HTML_CONTENT', 1, 1000, 'int', 0);
 
-ALTER TABLE `llx_adherent` ADD default_lang VARCHAR(6) NULL DEFAULT NULL AFTER datefin;
+ALTER TABLE llx_adherent ADD COLUMN default_lang VARCHAR(6) DEFAULT NULL AFTER datefin;