diff --git a/addons/website_project_issue/models/project_issue.py b/addons/website_project_issue/models/project_issue.py
index ed5421924b5..612a9b6e138 100644
--- a/addons/website_project_issue/models/project_issue.py
+++ b/addons/website_project_issue/models/project_issue.py
@@ -36,6 +36,9 @@ class Issue(models.Model):
         groups = super(Issue, self)._notification_recipients(message, groups)
 
         for group_name, group_method, group_data in groups:
+            if group_name in ["customer", "portal"]:
+                continue
+
             group_data['has_button_access'] = True
 
         return groups