diff --git a/vars.tf b/vars.tf
index e12b0aff918feaa97254a27a5799335e8fb76101..aa3567d6d2869240385e0402e04940d9f25a078a 100644
--- a/vars.tf
+++ b/vars.tf
@@ -26,7 +26,7 @@ variable "ohpc_user" {default = "centos"}
 variable "ood_user" {default = "centos"}
 variable "ssh_private_key" {default = "~/.ssh/id_rsa"}
 variable "data_volume" {default = ""}
-variable "xdmod_queue_data_volume" {default = "xdmod_queue_data_volume"}
+variable "xdmod_queue_data_volume" {default = ""}
 
 # variables for node creation module
 variable "image_compute" {default = "compute-v1"}