diff --git a/addons/mrp/mrp.py b/addons/mrp/mrp.py
index 2ac1033f67e..d2fcfbdfc6c 100644
--- a/addons/mrp/mrp.py
+++ b/addons/mrp/mrp.py
@@ -313,7 +313,7 @@ class mrp_bom(osv.osv):
                 continue
 
             if previous_products and bom_line_id.product_id.product_tmpl_id.id in previous_products:
-                raise UserError(_('BoM "%s" contains a BoM line with a product recursion: "%s".') % (master_bom.name,bom_line_id.product_id.name_get()[0][1]))
+                raise UserError(_('BoM "%s" contains a BoM line with a product recursion: "%s".') % (master_bom.code or "", bom_line_id.product_id.name_get()[0][1]))
 
             quantity = _factor(bom_line_id.product_qty * factor, bom_line_id.product_efficiency, bom_line_id.product_rounding)
             bom_id = self._bom_find(cr, uid, product_id=bom_line_id.product_id.id, properties=properties, context=context)