diff --git a/htdocs/install/mysql/migration/3.7.0-3.8.0.sql b/htdocs/install/mysql/migration/3.7.0-3.8.0.sql
index d1cf11ac4c3..2241c35f00d 100755
--- a/htdocs/install/mysql/migration/3.7.0-3.8.0.sql
+++ b/htdocs/install/mysql/migration/3.7.0-3.8.0.sql
@@ -793,4 +793,9 @@ DELETE FROM llx_c_regions WHERE code_region=420 and fk_pays=4;
 
 ALTER TABLE llx_c_paiement MODIFY COLUMN libelle varchar(62);
 
-ALTER TABLE llx_societe_remise_except MODIFY COLUMN description text NOT NULL;
\ No newline at end of file
+ALTER TABLE llx_societe_remise_except MODIFY COLUMN description text NOT NULL;
+
+-- Fix bad data
+update llx_opensurvey_sondage set format = 'D' where format = 'D+';
+update llx_opensurvey_sondage set format = 'A' where format = 'A+';
+
diff --git a/htdocs/install/mysql/migration/3.8.0-3.9.0.sql b/htdocs/install/mysql/migration/3.8.0-3.9.0.sql
index 8b64acf2ce8..c3e6b5b091e 100644
--- a/htdocs/install/mysql/migration/3.8.0-3.9.0.sql
+++ b/htdocs/install/mysql/migration/3.8.0-3.9.0.sql
@@ -18,8 +18,13 @@
 -- -- VPGSQL8.2 DELETE FROM llx_usergroup_user      WHERE fk_user      NOT IN (SELECT rowid from llx_user);
 -- -- VMYSQL4.1 DELETE FROM llx_usergroup_user      WHERE fk_usergroup NOT IN (SELECT rowid from llx_usergroup);
 
+-- Fix bad data
+update llx_opensurvey_sondage set format = 'D' where format = 'D+';
+update llx_opensurvey_sondage set format = 'A' where format = 'A+';
 
 INSERT INTO llx_const (name, value, type, note, visible) values ('MAIN_DELAY_EXPENSEREPORTS_TO_PAY','31','chaine','Tolérance de retard avant alerte (en jours) sur les notes de frais impayées',0);
 
 ALTER TABLE llx_accounting_system MODIFY COLUMN pcg_version varchar(32);
 ALTER TABLE llx_accountingaccount MODIFY COLUMN fk_pcg_version varchar(32);
+
+