diff --git a/provider.tf b/provider.tf
index ebee8ae7068b2a94869fa6f9ca78a5ccfcd25f90..ba4307ed3199a6321be3f9a7e4b5a8f01f1fcc0b 100644
--- a/provider.tf
+++ b/provider.tf
@@ -1,9 +1,9 @@
-variable "auth_url"	${TF_AUTH_URL} 	
-variable "project_domain_name" ${TF_PROJECT_NAME}
-variable "user_domain_name"	${TF_USER_DOMAIN_NAME} 	
-variable "region"	${TF_REGION_NAME} 	
-variable "user_name"	${TF_USERNAME}	 	
-variable "password"	${TF_PASSWORD}
+variable "auth_url"	{} 	
+variable "project_domain_name" {}
+variable "user_domain_name"	{} 	
+variable "region"	{} 	
+variable "user_name"	{}	 	
+variable "password"	{}
 
 provider "openstack" {
   auth_url            = "${var.auth_url}"