diff --git a/ansible/roles/stack-sunbird/templates/sunbird_player.env b/ansible/roles/stack-sunbird/templates/sunbird_player.env
index d9e8a4eed5bbae2b8a6462ee20f5a334a6e0e49f..61d2e4c7c81972d885f6b706bab7d07b7de02e9e 100644
--- a/ansible/roles/stack-sunbird/templates/sunbird_player.env
+++ b/ansible/roles/stack-sunbird/templates/sunbird_player.env
@@ -156,3 +156,5 @@ sunbird_portal_session_secret={{sunbird_portal_session_secret}}
 
 #release-4.0.0
 sunbird_base_proto={{sunbird_base_proto | default(proto)}}
+ML_SERVICE_BASE_URL={{ml_survey_url|default(proto+'://' +domain_name) }}
+