diff --git a/dev/monitoring/Tiltfile b/dev/monitoring/Tiltfile
index 0d6139a894..04258d9512 100644
--- a/dev/monitoring/Tiltfile
+++ b/dev/monitoring/Tiltfile
@@ -17,6 +17,6 @@ k8s_yaml(secret_from_dict(
   name      = 'monitoring-smoketest',
   namespace = local.smoketest_namespace,
   inputs={
-    'grafana_host' = 'monitoring-grafana.{}.svc.cluster.local'.format(monitoring_namespace),
+    'grafana_host': 'monitoring-grafana.{}.svc.cluster.local'.format(monitoring_namespace),
   }
 ))