diff --git a/htdocs/install/mysql/migration/3.4.0-3.5.0.sql b/htdocs/install/mysql/migration/3.4.0-3.5.0.sql
index b4b6c5efcbf..2c3542a777d 100755
--- a/htdocs/install/mysql/migration/3.4.0-3.5.0.sql
+++ b/htdocs/install/mysql/migration/3.4.0-3.5.0.sql
@@ -288,4 +288,9 @@ ALTER TABLE llx_bordereau_cheque ADD tms timestamp;
 -- Task 1011
 ALTER TABLE llx_societe ADD mode_reglement_supplier integer NULL AFTER cond_reglement;
 ALTER TABLE llx_societe ADD cond_reglement_supplier integer NULL AFTER mode_reglement_supplier;
+
 ALTER TABLE llx_facture_fourn ADD fk_mode_reglement integer NULL AFTER fk_cond_reglement;
+
+ALTER TABLE llx_facture_fourn MODIFY COLUMN fk_mode_reglement	integer NULL;
+ALTER TABLE llx_facture_fourn MODIFY COLUMN fk_cond_reglement	integer NULL;
+
diff --git a/htdocs/install/mysql/tables/llx_facture_fourn.sql b/htdocs/install/mysql/tables/llx_facture_fourn.sql
index 8722cc7ef8e..c980d43e40f 100644
--- a/htdocs/install/mysql/tables/llx_facture_fourn.sql
+++ b/htdocs/install/mysql/tables/llx_facture_fourn.sql
@@ -58,8 +58,8 @@ create table llx_facture_fourn
   fk_facture_source		integer,                       -- facture origine si facture avoir
   fk_projet				integer,                       -- projet auquel est associee la facture
 
-  fk_cond_reglement		integer  DEFAULT 1 NOT NULL,   -- condition de reglement (30 jours, fin de mois ...)
-  fk_mode_reglement		integer  DEFAULT 0 NOT NULL,   -- mode de reglement (CHQ, VIR, ...)
+  fk_cond_reglement		integer,   	                   -- condition de reglement (30 jours, fin de mois ...)
+  fk_mode_reglement		integer,                	   -- mode de reglement (CHQ, VIR, ...)
   date_lim_reglement 	date,                          -- date limite de reglement
 
   note_private			text,