diff --git a/terraform/modules/network/main.tf b/terraform/modules/network/main.tf
index 7c19b56..e9e0768 100644
--- a/terraform/modules/network/main.tf
+++ b/terraform/modules/network/main.tf
@@ -55,7 +55,7 @@ resource "google_compute_firewall" "allow_ssh" {
   target_tags   = ["ssh"]
 }
 
-resource "google_compute_firewall" "allow_front-back" {
+resource "google_compute_firewall" "allow_front_back" {
   name    = "allow-front-back"
   network = google_compute_network.tp07.id
 
@@ -68,7 +68,7 @@ resource "google_compute_firewall" "allow_front-back" {
   target_tags   = ["backend"]
 }
 
-resource "google_compute_firewall" "allow_back-database" {
+resource "google_compute_firewall" "allow_back_database" {
   name    = "allow-front-back"
   network = google_compute_network.tp07.id