diff --git a/addons/product/models/product.py b/addons/product/models/product.py
index e19f4c456d8..974c1eeeb5b 100644
--- a/addons/product/models/product.py
+++ b/addons/product/models/product.py
@@ -78,7 +78,7 @@ class ProductProduct(models.Model):
     _name = "product.product"
     _description = "Product"
     _inherits = {'product.template': 'product_tmpl_id'}
-    _inherit = ['mail.thread']
+    _inherit = ['mail.thread', 'mail.activity.mixin']
     _order = 'default_code, name, id'
 
     price = fields.Float(