diff --git a/htdocs/install/mysql/migration/3.0.0-3.1.0.sql b/htdocs/install/mysql/migration/3.0.0-3.1.0.sql
index e1aea893fe6..1aaf7ed3e30 100755
--- a/htdocs/install/mysql/migration/3.0.0-3.1.0.sql
+++ b/htdocs/install/mysql/migration/3.0.0-3.1.0.sql
@@ -446,6 +446,7 @@ ALTER TABLE llx_extrafields ADD COLUMN elementtype varchar(64) NOT NULL DEFAULT
 ALTER TABLE llx_extrafields ADD UNIQUE INDEX uk_extrafields_name (name, entity, elementtype);
 ALTER TABLE llx_adherent_options rename to llx_adherent_extrafields;
 ALTER TABLE llx_adherent_extrafields CHANGE COLUMN fk_member fk_object integer NOT NULL;
+alter table llx_extrafields add column type varchar(8);
 
 -- drop tables renamed into llx_advanced_extra_xxx
 drop table llx_extra_fields_options;