diff --git a/addons/digest/models/res_users.py b/addons/digest/models/res_users.py
index 397d672e60e..44884554548 100644
--- a/addons/digest/models/res_users.py
+++ b/addons/digest/models/res_users.py
@@ -12,7 +12,8 @@ class ResUsers(models.Model):
         users = super(ResUsers, self).create(vals_list)
         default_digest_emails = self.env['ir.config_parameter'].sudo().get_param('digest.default_digest_emails')
         default_digest_id = self.env['ir.config_parameter'].sudo().get_param('digest.default_digest_id')
-        if default_digest_emails and default_digest_id:
+        users_to_subscribe = users.filtered_domain([('share', '=', False)])
+        if default_digest_emails and default_digest_id and users_to_subscribe:
             digest = self.env['digest.digest'].sudo().browse(int(default_digest_id)).exists()
-            digest.user_ids |= users.filtered_domain([('share', '=', False)])
+            digest.user_ids |= users_to_subscribe
         return users