diff --git a/charts/posthog/templates/clickhouse-backup-cronjob.yaml b/charts/posthog/templates/clickhouse-backup-cronjob.yaml
index 95f74edce..16280d5dc 100644
--- a/charts/posthog/templates/clickhouse-backup-cronjob.yaml
+++ b/charts/posthog/templates/clickhouse-backup-cronjob.yaml
@@ -49,7 +49,7 @@ spec:
                   until (
                       wget -qO- \
                           "http://$CLICKHOUSE_USER:$CLICKHOUSE_PASSWORD@clickhouse-posthog.$(cat /var/run/secrets/kubernetes.io/serviceaccount/namespace).svc.cluster.local:8123" \
-                          --post-data "SELECT count() FROM clusterAllReplicas('posthog', system, one)"
+                          --post-data "SELECT count() FROM clusterAllReplicas('{{ .Values.clickhouse.cluster }}', system, one)"
                   ); do
                       echo "waiting for ClickHouse cluster to become available"; sleep 1;
                   done