diff --git a/nix/configurations/vanadium/nixos/locale.nix b/nix/configurations/vanadium/nixos/locale.nix
index 6ab2e643..e0e7ace6 100644
--- a/nix/configurations/vanadium/nixos/locale.nix
+++ b/nix/configurations/vanadium/nixos/locale.nix
@@ -8,5 +8,20 @@
       "fr_FR.UTF-8/UTF-8"
       "zh_TW.UTF-8/UTF-8"
     ];
+    extraLocaleSettings = {
+      # LC_CTYPE = "en_US.UTF-8";
+      # LC_NUMERIC = "en_US.UTF-8";
+      LC_TIME = "fr_FR.UTF-8";
+      # LC_COLLATE = "en_US.UTF-8";
+      LC_MONETARY = "fr_FR.UTF-8";
+      # LC_MESSAGES = "en_US.UTF-8";
+      # LC_PAPER = "en_US.UTF-8";
+      # LC_NAME = "en_US.UTF-8";
+      LC_ADDRESS = "fr_FR.UTF-8";
+      # LC_TELEPHONE = "en_US.UTF-8";
+      # LC_MEASUREMENT = "en_US.UTF-8";
+      # LC_IDENTIFICATION = "en_US.UTF-8";
+      # LC_ALL=
+    };
   };
 }