diff --git a/modules/locale.nix b/modules/locale.nix
index 8e0967b..51fc530 100644
--- a/modules/locale.nix
+++ b/modules/locale.nix
@@ -2,7 +2,7 @@ _:
 {
   services.automatic-timezoned.enable = true;
   i18n.defaultLocale = "en_GB.UTF-8";
-  i18n.ExtraLocaleSettings = {
+  i18n.extraLocaleSettings = {
     LC_ADDRESS = "en_GB.UTF-8";
     LC_IDENTIFICATION = "en_GB.UTF-8";
     LC_MEASUREMENT = "en_GB.UTF-8";