diff --git a/addons/product/product.py b/addons/product/product.py
index 38c4d82272f..0d5fa31ac11 100644
--- a/addons/product/product.py
+++ b/addons/product/product.py
@@ -661,11 +661,16 @@ class product_product(osv.osv):
         if context is None:
             context={}
 
-        product = self.read(cr, uid, id, ['name'], context=context)
         if not default:
             default = {}
+
+        # Craft our own `<name> (copy)` in en_US (self.copy_translation()
+        # will do the other languages).
+        context_wo_lang = context.copy()
+        context_wo_lang.pop('lang', None)
+        product = self.read(cr, uid, id, ['name'], context=context_wo_lang)
         default = default.copy()
-        default['name'] = product['name'] + _(' (copy)')
+        default['name'] = product['name'] + ' (copy)'
 
         if context.get('variant',False):
             fields = ['product_tmpl_id', 'active', 'variants', 'default_code',