diff --git a/addons/stock/stock.py b/addons/stock/stock.py
index ae6b3888dc2..19824d45c0d 100644
--- a/addons/stock/stock.py
+++ b/addons/stock/stock.py
@@ -3996,15 +3996,15 @@ class stock_warehouse(osv.osv):
                     name = vals.get('name', warehouse.name)
                 self._handle_renaming(cr, uid, warehouse, name, vals.get('code', warehouse.code), context=context_with_inactive)
                 if warehouse.in_type_id:
-                    seq_obj.write(cr, uid, warehouse.in_type_id.sequence_id.id, {'name': name + _(' Sequence in'), 'prefix': vals.get('code', warehouse.code) + '\IN\\'}, context=context)
+                    seq_obj.write(cr, uid, warehouse.in_type_id.sequence_id.id, {'name': name + _(' Sequence in'), 'prefix': vals.get('code', warehouse.code) + '/IN/'}, context=context)
                 if warehouse.out_type_id:
-                    seq_obj.write(cr, uid, warehouse.out_type_id.sequence_id.id, {'name': name + _(' Sequence out'), 'prefix': vals.get('code', warehouse.code) + '\OUT\\'}, context=context)
+                    seq_obj.write(cr, uid, warehouse.out_type_id.sequence_id.id, {'name': name + _(' Sequence out'), 'prefix': vals.get('code', warehouse.code) + '/OUT/'}, context=context)
                 if warehouse.pack_type_id:
-                    seq_obj.write(cr, uid, warehouse.pack_type_id.sequence_id.id, {'name': name + _(' Sequence packing'), 'prefix': vals.get('code', warehouse.code) + '\PACK\\'}, context=context)
+                    seq_obj.write(cr, uid, warehouse.pack_type_id.sequence_id.id, {'name': name + _(' Sequence packing'), 'prefix': vals.get('code', warehouse.code) + '/PACK/'}, context=context)
                 if warehouse.pick_type_id:
-                    seq_obj.write(cr, uid, warehouse.pick_type_id.sequence_id.id, {'name': name + _(' Sequence picking'), 'prefix': vals.get('code', warehouse.code) + '\PICK\\'}, context=context)
+                    seq_obj.write(cr, uid, warehouse.pick_type_id.sequence_id.id, {'name': name + _(' Sequence picking'), 'prefix': vals.get('code', warehouse.code) + '/PICK/'}, context=context)
                 if warehouse.int_type_id:
-                    seq_obj.write(cr, uid, warehouse.int_type_id.sequence_id.id, {'name': name + _(' Sequence internal'), 'prefix': vals.get('code', warehouse.code) + '\INT\\'}, context=context)
+                    seq_obj.write(cr, uid, warehouse.int_type_id.sequence_id.id, {'name': name + _(' Sequence internal'), 'prefix': vals.get('code', warehouse.code) + '/INT/'}, context=context)
         if vals.get('resupply_wh_ids') and not vals.get('resupply_route_ids'):
             for cmd in vals.get('resupply_wh_ids'):
                 if cmd[0] == 6: