missing param

Change-Id: I35ca92a911e302f57b4d57d03c60bc1057f6cf1b
diff --git a/classes/cluster/virtual-mcp05-dvr/stacklight/init.yml b/classes/cluster/virtual-mcp05-dvr/stacklight/init.yml
index 48bffdc..cf6c860 100644
--- a/classes/cluster/virtual-mcp05-dvr/stacklight/init.yml
+++ b/classes/cluster/virtual-mcp05-dvr/stacklight/init.yml
@@ -5,6 +5,7 @@
     heka_aggregator_host: ${_param:stacklight_monitor_address}
     aggregator_port: 5565
     grafana_user: admin
+    postgresql_grafana_password: password
     grafana_password: password
     grafana_influxdb_host: ${_param:stacklight_monitor_node01_address}
     elasticsearch_port: 9200