diff --git a/proxmox/terraform/modules/node/main.tf b/proxmox/terraform/modules/node/main.tf
--- a/proxmox/terraform/modules/node/main.tf
+++ b/proxmox/terraform/modules/node/main.tf
@@ -83,8 +83,8 @@
       [
         # First install facts...
         "mkdir -p /etc/facter/facts.d",
-        "echo deployment=${var.facter_deployment} > /etc/facter/facts.d/deployment.txt",
-        "echo subnet=${var.facter_subnet} > /etc/facter/facts.d/subnet.txt",
+        "echo deployment=${var.config["facter_deployment"]} > /etc/facter/facts.d/deployment.txt",
+        "echo subnet=${var.config["facter_subnet"]} > /etc/facter/facts.d/subnet.txt",
         "sed -i 's/127.0.1.1/${lookup(var.networks[0], "ip")}/g' /etc/hosts",
         # so puppet agent installs the node's role
         "puppet agent --server ${var.config["puppet_master"]} --environment=${var.config["puppet_environment"]} --waitforcert 60 --test || echo 'Node provisionned!'",
diff --git a/proxmox/terraform/modules/node/variables.tf b/proxmox/terraform/modules/node/variables.tf
--- a/proxmox/terraform/modules/node/variables.tf
+++ b/proxmox/terraform/modules/node/variables.tf
@@ -3,18 +3,6 @@
   type        = string
 }
 
-variable "facter_subnet" {
-  description = "Subnet custom fact (e.g sesi_rocquencourt_staging, ...)"
-  type        = string
-  default     = "sesi_rocquencourt_staging"
-}
-
-variable "facter_deployment" {
-  description = "Deployment custom fact (e.g staging, production)"
-  type        = string
-  default     = "staging"
-}
-
 variable "description" {
   description = "Node's description"
   type        = string
diff --git a/proxmox/terraform/production/production.tf b/proxmox/terraform/production/production.tf
--- a/proxmox/terraform/production/production.tf
+++ b/proxmox/terraform/production/production.tf
@@ -3,6 +3,8 @@
     dns                             = var.dns
     domain                          = "internal.softwareheritage.org"
     puppet_environment              = "production"
+    facter_deployment               = "production"
+    facter_subnet                   = "sesi_rocquencourt"
     puppet_master                   = var.puppet_master
     gateway_ip                      = "192.168.100.1"
     user_admin                      = var.user_admin
diff --git a/proxmox/terraform/staging/staging.tf b/proxmox/terraform/staging/staging.tf
--- a/proxmox/terraform/staging/staging.tf
+++ b/proxmox/terraform/staging/staging.tf
@@ -10,6 +10,8 @@
     dns                             = var.dns
     domain                          = var.domain
     puppet_environment              = var.puppet_environment
+    facter_deployment               = "staging"
+    facter_subnet                   = "sesi_rocquencourt_staging"
     puppet_master                   = var.puppet_master
     gateway_ip                      = var.gateway_ip
     user_admin                      = var.user_admin