diff --git a/contrib/terraform/openstack/modules/compute/variables.tf b/contrib/terraform/openstack/modules/compute/variables.tf
index b85f56250..608cafe4a 100644
--- a/contrib/terraform/openstack/modules/compute/variables.tf
+++ b/contrib/terraform/openstack/modules/compute/variables.tf
@@ -65,39 +65,39 @@ variable "network_id" {
 }
 
 variable "k8s_master_fips" {
-  type = "list"
+  type = list
 }
 
 variable "k8s_master_no_etcd_fips" {
-  type = "list"
+  type = list
 }
 
 variable "k8s_node_fips" {
-  type = "list"
+  type = list
 }
 
 variable "k8s_nodes_fips" {
-  type = "map"
+  type = map
 }
 
 variable "bastion_fips" {
-  type = "list"
+  type = list
 }
 
 variable "bastion_allowed_remote_ips" {
-  type = "list"
+  type = list
 }
 
 variable "master_allowed_remote_ips" {
-  type = "list"
+  type = list
 }
 
 variable "k8s_allowed_remote_ips" {
-  type = "list"
+  type = list
 }
 
 variable "k8s_allowed_egress_ips" {
-  type = "list"
+  type = list
 }
 
 variable "k8s_nodes" {}
@@ -113,7 +113,7 @@ variable "supplementary_node_groups" {
 }
 
 variable "worker_allowed_ports" {
-  type = "list"
+  type = list
 }
 
 variable "use_access_ip" {}
diff --git a/contrib/terraform/openstack/modules/network/variables.tf b/contrib/terraform/openstack/modules/network/variables.tf
index 1b2660f37..f8eb64884 100644
--- a/contrib/terraform/openstack/modules/network/variables.tf
+++ b/contrib/terraform/openstack/modules/network/variables.tf
@@ -7,7 +7,7 @@ variable "network_dns_domain" {}
 variable "cluster_name" {}
 
 variable "dns_nameservers" {
-  type = "list"
+  type = list
 }
 
 variable "subnet_cidr" {}
diff --git a/contrib/terraform/openstack/variables.tf b/contrib/terraform/openstack/variables.tf
index 334e6c678..6976929c4 100644
--- a/contrib/terraform/openstack/variables.tf
+++ b/contrib/terraform/openstack/variables.tf
@@ -131,7 +131,7 @@ variable "network_name" {
 
 variable "network_dns_domain" {
   description = "dns_domain for the internal network"
-  type        = "string"
+  type        = string
   default     = null
 }
 
@@ -142,13 +142,13 @@ variable "use_neutron" {
 
 variable "subnet_cidr" {
   description = "Subnet CIDR block."
-  type        = "string"
+  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"
+  type        = list
   default     = []
 }
 
@@ -178,30 +178,30 @@ variable "supplementary_node_groups" {
 
 variable "bastion_allowed_remote_ips" {
   description = "An array of CIDRs allowed to SSH to hosts"
-  type        = "list"
+  type        = list(string)
   default     = ["0.0.0.0/0"]
 }
 
 variable "master_allowed_remote_ips" {
   description = "An array of CIDRs allowed to access API of masters"
-  type        = "list"
+  type        = list(string)
   default     = ["0.0.0.0/0"]
 }
 
 variable "k8s_allowed_remote_ips" {
   description = "An array of CIDRs allowed to SSH to hosts"
-  type        = "list"
+  type        = list(string)
   default     = []
 }
 
 variable "k8s_allowed_egress_ips" {
   description = "An array of CIDRs allowed for egress traffic"
-  type        = "list"
+  type        = list(string)
   default     = ["0.0.0.0/0"]
 }
 
 variable "worker_allowed_ports" {
-  type = "list"
+  type = list
 
   default = [
     {