diff --git a/modules/crans/networking.nix b/modules/crans/networking.nix
index a376fb2..46e3b17 100644
--- a/modules/crans/networking.nix
+++ b/modules/crans/networking.nix
@@ -72,18 +72,21 @@ in
   };
 
   config = mkIf cfg.enable {
-    networking =
-      {
-        useDHCP = false;
-        firewall.enable = lib.mkDefault false;
-        nameservers = [ "172.16.10.128" ];
-      }
-      //
-        # Configuration du VLAN adm
-        (
-          if cfg.adm.enable then
-            {
-              interfaces."${cfg.adm.interface}" = {
+    networking = {
+      useDHCP = false;
+      firewall.enable = lib.mkDefault false;
+      nameservers = [ "172.16.10.128" ];
+
+      interfaces =
+        lib.attrsets.mapAttrs'
+          (interface: conf: {
+            name = cfg."${interface}".interface;
+            value = conf;
+          })
+          (
+            lib.attrsets.filterAttrs (interface: _: cfg."${interface}".enable) {
+              # Configuration du VLAN adm
+              adm = {
                 ipv4.addresses = [
                   {
                     address = "172.16.10.1${cfg.id}";
@@ -98,18 +101,9 @@ in
                   }
                 ];
               };
-            }
-          else
-            { }
-        )
-      //
-        # Configuration du VLAN srv
-        (
-          if cfg.srv.enable then
-            {
-              firewall.enable = true;
 
-              interfaces."${cfg.srv.interface}" = {
+              # Configuration du VLAN srv
+              srv = {
                 ipv4 = {
                   addresses = [
                     {
@@ -141,17 +135,9 @@ in
                   ];
                 };
               };
-            }
-          else
-            { }
-        )
 
-      //
-        # Configuration du VLAN srv-nat
-        (
-          if cfg.srvNat.enable then
-            {
-              interfaces."${cfg.srvNat.interface}" = {
+              # Configuration du VLAN srv-nat
+              srvNat = {
                 ipv4 = {
                   addresses = [
                     {
@@ -184,16 +170,9 @@ in
                   ];
                 };
               };
-            }
-          else
-            { }
-        )
-      //
-        # Configuration du VLAN san
-        (
-          if cfg.san.enable then
-            {
-              interfaces."${cfg.san.interface}" = {
+
+              # Configuration du VLAN san
+              san = {
                 ipv4.addresses = [
                   {
                     address = "172.16.4.1${cfg.id}";
@@ -209,8 +188,7 @@ in
                 ];
               };
             }
-          else
-            { }
-        );
+          );
+    };
   };
 }