diff --git a/survey_partner_input/models/res_partner.py b/survey_partner_input/models/res_partner.py
index 9af7c69..32b095e 100644
--- a/survey_partner_input/models/res_partner.py
+++ b/survey_partner_input/models/res_partner.py
@@ -27,7 +27,7 @@ class ResPartner(models.Model):
             domain = [
                 ("partner_id", "=", self._origin.id),
                 "|",
-                ("invite_token", "not in", [False, None]),
+                ("invite_token", "!=", False),
                 ("state", "=", "dones"),
             ]
             if self.email:
@@ -40,7 +40,7 @@ class ResPartner(models.Model):
                     ("partner_id", "in", self.ids),
                     ("email", "in", self.filtered("email").mapped("email")),
                     "|",
-                    ("invite_token", "not in", [False, None]),
+                    ("invite_token", "!=", False),
                     ("state", "=", "done"),
                 ]
             )
@@ -102,12 +102,12 @@ class ResPartner(models.Model):
             if len(domain) > 1:
                 domain = AND(
                     [
-                        [("invite_token", "not in", [False, None])],
+                        [("invite_token", "!=", False)],
                         normalize_domain(domain),
                     ]
                 )
             else:
-                domain = [("invite_token", "not in", [False, None])]
+                domain = [("invite_token", "!=", False)]
         action["domain"] = domain
         # return updated action
         return action