diff --git a/tests/sentry/api/endpoints/test_project_alert_rule_task_details.py b/tests/sentry/api/endpoints/test_project_alert_rule_task_details.py
index a603d5224af34b..1b56f6bfa401fb 100644
--- a/tests/sentry/api/endpoints/test_project_alert_rule_task_details.py
+++ b/tests/sentry/api/endpoints/test_project_alert_rule_task_details.py
@@ -76,7 +76,7 @@ def test_workflow_engine_serializer(self):
             alert_rule_trigger=self.critical_trigger
         )
         _, _, _, self.detector, _, _, _, _ = migrate_alert_rule(self.rule)
-        self.critical_detector_trigger, _ = migrate_metric_data_conditions(self.critical_trigger)
+        self.critical_detector_trigger, _, _ = migrate_metric_data_conditions(self.critical_trigger)
 
         self.critical_action, _, _ = migrate_metric_action(self.critical_trigger_action)
         self.resolve_trigger_data_condition = migrate_resolve_threshold_data_condition(self.rule)