diff --git a/modules/base/default.nix b/modules/base/default.nix
index ec0ee46..545619f 100644
--- a/modules/base/default.nix
+++ b/modules/base/default.nix
@@ -45,7 +45,7 @@
     ];
 
     i18n = {
-      defaultLocale = "en_US.UTF-8";
+      defaultLocale = "en_US.UTF-8/UTF-8";
       supportedLocales = [
         "C.UTF-8/UTF-8"
         "en_US.UTF-8/UTF-8"