diff --git a/modules/base/default.nix b/modules/base/default.nix
index 4453678d..62a01d44 100644
--- a/modules/base/default.nix
+++ b/modules/base/default.nix
@@ -83,6 +83,11 @@
       extraLocaleSettings = {
         LC_TIME = "en_GB.UTF-8";
       };
+      supportedLocales = [
+        "en_GB.UTF-8/UTF-8"
+        "en_IE.UTF-8/UTF-8"
+        "en_US.UTF-8/UTF-8"
+      ];
     };
 
     security = {