diff --git a/hosts/modules/desktop.nix b/hosts/modules/desktop.nix
index bb6108c..23c00b5 100644
--- a/hosts/modules/desktop.nix
+++ b/hosts/modules/desktop.nix
@@ -67,5 +67,10 @@
   # services.xserver.libinput.enable = true;
 
   # Install firefox.
-  programs.firefox.enable = true;
+  programs.firefox = {
+    enable = true;
+    languagePacks = [
+      "en-GB"
+    ];
+  };
 }