diff --git a/openstack/variables.pkr.hcl b/openstack/variables.pkr.hcl
index 0070745885c10e636a8ccd4ca56eb3a4b9887c74..175ca17edf8b952ec5a041cc8209720473d2ac8d 100644
--- a/openstack/variables.pkr.hcl
+++ b/openstack/variables.pkr.hcl
@@ -64,6 +64,13 @@ variable "security_groups" {
   default = []
   description = "A list of security groups to add - you should make sure ssh access is open to the machine"
 }
+
+variable "build_instance_name" {
+  type = string
+  default = "ood"
+  description = "A name of build instance used for image build"
+}
+
 variable "ssh_username" {
   type = string
   default = "centos"