diff --git a/ansible/roles/stack-sunbird/templates/ml-core-service.env b/ansible/roles/stack-sunbird/templates/ml-core-service.env
index 7be5148d7d703b747b4ab628e1e709e1d1491b97..8845454134b0424591c93401ef7f73ec63b1c566 100755
--- a/ansible/roles/stack-sunbird/templates/ml-core-service.env
+++ b/ansible/roles/stack-sunbird/templates/ml-core-service.env
@@ -10,7 +10,7 @@ APPLICATION_ENV={{ml_core_node_env|default("development")}}
 ENABLE_CONSOLE_LOGGING={{ml_core_enable_debug_logging | default("OFF")}}
 
 # Mongo DB Configuration
-MONGODB_URL=mongodb:{{ml_core_mongodb_url | default(groups['mongo_master'][0]+':27017')}}/ml-survey
+MONGODB_URL=mongodb://{{ml_core_mongodb_url | default(groups['mongo_master'][0]+':27017')}}/ml-survey
 
 # Secure token access Admin related API's
 # The value of internal access token can be generated by command - "openssl rand -hex 10