diff --git a/configuration/default.nix b/configuration/default.nix
index 7b38dd9..8f55fe9 100644
--- a/configuration/default.nix
+++ b/configuration/default.nix
@@ -20,9 +20,9 @@ in
 
     # commandées par config-generator
     ## option de configuration spécifique
-    ./auto-upgrade.nix              # mise à jour automatique du système
     ./awesome.nix               # pour le gestionaire de fenêtres awesome
     ./laptop.nix                    # appli & configuration adaptée pour un PC portable
+    ./nix-options.nix              # options de Nix (update, gc, optimisation)
     ./swap.nix                      # définition de l'utilisation du swap
   ];
 }
diff --git a/configuration/auto-upgrade.nix b/configuration/nix-options.nix
similarity index 86%
rename from configuration/auto-upgrade.nix
rename to configuration/nix-options.nix
index fc5668f..52971c4 100644
--- a/configuration/auto-upgrade.nix
+++ b/configuration/nix-options.nix
@@ -7,11 +7,11 @@ let
   flags = currentMachine.configurationFlags;
 in
 
-mkIf flags.auto-upgrade {
+{
 
   # Automatic update & automatic clean
 
-  system.autoUpgrade.enable = true;
+  system.autoUpgrade.enable = flags.auto-upgrade;
   nix = {
     autoOptimiseStore = true;
     gc = {