diff --git a/manifests/monitoring/grafana/dashboards/cluster.json b/manifests/monitoring/grafana/dashboards/cluster.json
index 21a46bb9..743eb92a 100644
--- a/manifests/monitoring/grafana/dashboards/cluster.json
+++ b/manifests/monitoring/grafana/dashboards/cluster.json
@@ -916,7 +916,7 @@
             "$__all"
           ]
         },
-        "datasource": null,
+        "datasource": "$DS_PROMETHEUS",
         "definition": "label_values(gotk_reconcile_condition, exported_namespace)",
         "description": null,
         "error": null,