diff --git a/addons/stock/wizard/stock_picking_return.py b/addons/stock/wizard/stock_picking_return.py
index be19f5ed396..b7591fa70c6 100644
--- a/addons/stock/wizard/stock_picking_return.py
+++ b/addons/stock/wizard/stock_picking_return.py
@@ -24,10 +24,10 @@ class ReturnPicking(models.TransientModel):
 
     @api.model
     def default_get(self, fields):
-        if len(self.env.context.get('active_ids', list())) > 1:
-            raise UserError(_("You may only return one picking at a time."))
         res = super(ReturnPicking, self).default_get(fields)
         if self.env.context.get('active_id') and self.env.context.get('active_model') == 'stock.picking':
+            if len(self.env.context.get('active_ids', list())) > 1:
+                raise UserError(_("You may only return one picking at a time."))
             picking = self.env['stock.picking'].browse(self.env.context.get('active_id'))
             if picking.exists():
                 res.update({'picking_id': picking.id})