diff --git a/kubernetes/ansible/roles/sunbird-monitoring/defaults/main.yml b/kubernetes/ansible/roles/sunbird-monitoring/defaults/main.yml
index b65da6b62fc9e9dfdba5e9667aeb426520af6171..05342cddf2082a35d5889c574c05829ff31b98e3 100644
--- a/kubernetes/ansible/roles/sunbird-monitoring/defaults/main.yml
+++ b/kubernetes/ansible/roles/sunbird-monitoring/defaults/main.yml
@@ -18,7 +18,7 @@ monitoring_stack:
 # monitoring_stack_additional_charts:
   # - custom_chart1
   # - custom_monitoring_chart2
-monitoring_stack_additional_charts:
+monitoring_stack_additional_charts: []
 
 namespace: monitoring