diff --git a/htdocs/install/mysql/tables/llx_adherent_type.sql b/htdocs/install/mysql/tables/llx_adherent_type.sql
index 084d0457941..57ec8becfff 100644
--- a/htdocs/install/mysql/tables/llx_adherent_type.sql
+++ b/htdocs/install/mysql/tables/llx_adherent_type.sql
@@ -30,6 +30,7 @@ create table llx_adherent_type
   statut           smallint NOT NULL DEFAULT 0,
   libelle          varchar(50) NOT NULL,
   morphy           varchar(3) NOT NULL,
+  duration         varchar6(3) NOT NULL DEFAULT 1y,
   subscription     varchar(3) NOT NULL DEFAULT 'yes',
   vote             varchar(3) NOT NULL DEFAULT 'yes',
   note             text,