diff --git a/addons/stock/stock.py b/addons/stock/stock.py
index dab4f6a3c16..7c47f757198 100644
--- a/addons/stock/stock.py
+++ b/addons/stock/stock.py
@@ -3796,7 +3796,7 @@ class stock_warehouse(osv.osv):
         wh_loc_id = location_obj.create(cr, uid, loc_vals, context=context)
         vals['view_location_id'] = wh_loc_id
         #create all location
-        def_values = self.default_get(cr, uid, {'reception_steps', 'delivery_steps'})
+        def_values = self.default_get(cr, uid, ['reception_steps', 'delivery_steps'])
         reception_steps = vals.get('reception_steps',  def_values['reception_steps'])
         delivery_steps = vals.get('delivery_steps', def_values['delivery_steps'])
         context_with_inactive = context.copy()