diff --git a/product.py b/product.py
index 92fe4f5ca9..3dc76f8f5b 100644
--- a/product.py
+++ b/product.py
@@ -98,11 +98,11 @@ class Product(ModelSQL, ModelView):
         return res
 
     def search_rec_name(self, name, clause):
-        ids = self.search([('code',) + clause[1:]], order=[])
+        ids = self.search([('code',) + tuple(clause[1:])], order=[])
         if ids:
-            ids += self.search([('name',) + clause[1:]], order=[])
+            ids += self.search([('name',) + tuple(clause[1:])], order=[])
             return [('id', 'in', ids)]
-        return [('name',) + clause[1:]]
+        return [('name',) + tuple(clause[1:])]
 
     def delete(self, ids):
         template_obj = self.pool.get('product.template')