diff --git a/nixos/modules/config/i18n.nix b/nixos/modules/config/i18n.nix
index cdf5c661e5e9..b78e67848853 100644
--- a/nixos/modules/config/i18n.nix
+++ b/nixos/modules/config/i18n.nix
@@ -57,6 +57,7 @@ with lib;
           (builtins.map (l: (replaceStrings [ "utf8" "utf-8" "UTF8" ] [ "UTF-8" "UTF-8" "UTF-8" ] l) + "/UTF-8") (
             [
               "C.UTF-8"
+              "en_US.UTF-8"
               config.i18n.defaultLocale
             ] ++ (attrValues (filterAttrs (n: v: n != "LANGUAGE") config.i18n.extraLocaleSettings))
           ));