diff --git a/tests/sentry/incidents/action_handlers/test_slack.py b/tests/sentry/incidents/action_handlers/test_slack.py
index 3fd8a830757611..8499098972de9a 100644
--- a/tests/sentry/incidents/action_handlers/test_slack.py
+++ b/tests/sentry/incidents/action_handlers/test_slack.py
@@ -75,7 +75,8 @@ def setUp(self):
         )
         self.alert_rule = self.create_alert_rule()
 
-    def run_test(self, incident, method, chart_url=None):
+    def run_test(self, incident, method, **kwargs):
+        chart_url = kwargs.get("chart_url")
         handler = SlackActionHandler(self.action, incident, self.project)
         metric_value = 1000
         status = IncidentStatus(incident.status)