diff --git a/flake.nix b/flake.nix
index 1189431..9a49238 100644
--- a/flake.nix
+++ b/flake.nix
@@ -23,6 +23,7 @@
       devDeps = with pkgs; [hugo brotli zopfli parallel];
     in {
       devShells.default = pkgs.mkShell {
+        LOCALE_ARCHIVE = "${pkgs.glibcLocales}/lib/locale/locale-archive";
         packages = devDeps;
       };