diff --git a/contract_forecast/tests/test_contract_line_forecast_period.py b/contract_forecast/tests/test_contract_line_forecast_period.py
index 18d1c6dd1..e85504316 100644
--- a/contract_forecast/tests/test_contract_line_forecast_period.py
+++ b/contract_forecast/tests/test_contract_line_forecast_period.py
@@ -135,12 +135,15 @@ class TestContractLineForecastPeriod(TestContractBase):
                 'date_end': Date.today() + relativedelta(months=3),
                 'recurring_rule_type': "monthlylastday",
                 'recurring_invoicing_type': 'pre-paid',
-                'is_auto_renew': True,
+                'is_auto_renew': False,
             }
         )
         self.acct_line._onchange_date_start()
         self.assertTrue(self.acct_line.forecast_period_ids)
         self.assertEqual(len(self.acct_line.forecast_period_ids), 4)
+        self.acct_line.write({'is_auto_renew': True})
+        self.assertTrue(self.acct_line.forecast_period_ids)
+        self.assertEqual(len(self.acct_line.forecast_period_ids), 13)
 
     @mute_logger("odoo.addons.queue_job.models.base")
     def test_forecast_period_on_contract_line_update_8(self):