diff --git a/nixos/modules/config/i18n.nix b/nixos/modules/config/i18n.nix
index b1efc00773dc..b19d38091e75 100644
--- a/nixos/modules/config/i18n.nix
+++ b/nixos/modules/config/i18n.nix
@@ -66,6 +66,7 @@ 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))
             ))