diff --git a/contract/models/contract_recurrency_mixin.py b/contract/models/contract_recurrency_mixin.py
index aebc76c3f2..a4ae0c4f30 100644
--- a/contract/models/contract_recurrency_mixin.py
+++ b/contract/models/contract_recurrency_mixin.py
@@ -124,8 +124,6 @@ def _compute_next_period_date_start(self):
         "recurring_invoicing_offset",
         "recurring_rule_type",
         "recurring_interval",
-        "date_end",
-        "recurring_next_date",
     )
     def _compute_next_period_date_end(self):
         for rec in self: