diff --git a/wireguard/main.tf b/wireguard/main.tf
index ebc8e482..9b3abc99 100644
--- a/wireguard/main.tf
+++ b/wireguard/main.tf
@@ -19,8 +19,8 @@ resource "nebius_compute_v1_instance" "wireguard_instance" {
   ]
 
   resources = {
-    platform = var.platform
-    preset   = var.preset
+    platform = local.platform
+    preset   = local.preset
   }
 
 
diff --git a/wireguard/variables.tf b/wireguard/variables.tf
index f05a5a33..1b0d7c9b 100644
--- a/wireguard/variables.tf
+++ b/wireguard/variables.tf
@@ -19,13 +19,13 @@ variable "region" {
 variable "platform" {
   description = "Platform for WireGuard host."
   type        = string
-  default     = "cpu-e2"
+  default     = null
 }
 
 variable "preset" {
   description = "Preset for WireGuard host."
   type        = string
-  default     = "4vcpu-16gb"
+  default     = null
 }
 
 # SSH access