diff --git a/contrib/terraform/openstack/modules/network/variables.tf b/contrib/terraform/openstack/modules/network/variables.tf
index c8382b15e..6494358aa 100644
--- a/contrib/terraform/openstack/modules/network/variables.tf
+++ b/contrib/terraform/openstack/modules/network/variables.tf
@@ -8,7 +8,4 @@ variable "dns_nameservers" {
   type = "list"
 }
 
-variable "subnet_cidr" {
-  type = "string"
-  default = "10.0.0.0/24"
-}
+variable "subnet_cidr" {}
diff --git a/contrib/terraform/openstack/variables.tf b/contrib/terraform/openstack/variables.tf
index d49746c92..04e0d0c62 100644
--- a/contrib/terraform/openstack/variables.tf
+++ b/contrib/terraform/openstack/variables.tf
@@ -97,6 +97,12 @@ variable "network_name" {
   default     = "internal"
 }
 
+variable "subnet_cidr" {
+  description = "Subnet CIDR block."
+  type = "string"
+  default = "10.0.0.0/24"
+}
+
 variable "dns_nameservers" {
   description = "An array of DNS name server names used by hosts in this subnet."
   type        = "list"