diff --git a/ansible/roles/stack-sunbird/templates/sunbird_nodebb.env b/ansible/roles/stack-sunbird/templates/sunbird_nodebb.env
index 407df50755892353e7611e3ec75f70f66a6e5821..ba09122b9d86a296fc75306f18ac2f24e5afce39 100644
--- a/ansible/roles/stack-sunbird/templates/sunbird_nodebb.env
+++ b/ansible/roles/stack-sunbird/templates/sunbird_nodebb.env
@@ -9,6 +9,7 @@ redis__host={{sunbird_nodebb_redis_host|default(sunbird_lp_redis_host)}}
 redis__port=6379
 redis__username={{nodebb_db_username|default('')}}
 redis__password={{nodebb_db_password|default('')}}
+isCluster={{nodebb_cluster_enable|default('true')}}
 # redis database number
 redis__database={{nodebb_db_index_name|default(10)}} 
 redis__secondarydb={{nodebb_db_secondary_index_name|default(11)}}