diff --git a/terraform/modules/network/main.tf b/terraform/modules/network/main.tf
index 543309c..25062bd 100644
--- a/terraform/modules/network/main.tf
+++ b/terraform/modules/network/main.tf
@@ -24,14 +24,14 @@ resource "google_compute_subnetwork" "subnet_frontend" {
 resource "google_compute_subnetwork" "subnet_backend" {
   name          = "backend"
   network       = google_compute_network.vpc_terraform.id
-  ip_cidr_range = var.frontend_cidr
+  ip_cidr_range = var.backend_cidr
   region        = var.region
 }
 
 resource "google_compute_subnetwork" "subnet_database" {
   name          = "database"
   network       = google_compute_network.vpc_terraform.id
-  ip_cidr_range = var.frontend_cidr
+  ip_cidr_range = var.database_cidr
   region        = var.region
 }