diff --git a/ansible/script/global_vars.sh b/ansible/script/global_vars.sh
index 0bbd1d220..8a2d3c09a 100644
--- a/ansible/script/global_vars.sh
+++ b/ansible/script/global_vars.sh
@@ -43,7 +43,7 @@ dashboard_installation_type=container
 
 # osdsdock
 # Change it according to your backend, currently support 'lvm', 'ceph', 'cinder'
-enabled_backend=ceph
+enabled_backends=ceph
 
 ###########
 #   LVM   #