diff --git a/lib/constants.js b/lib/constants.js
index 81fe6f2..275df0f 100644
--- a/lib/constants.js
+++ b/lib/constants.js
@@ -869,6 +869,11 @@ export const LANGUAGES = [
     custom: true,
     highlight: true,
   },
+  {
+    name: 'Nix',
+    mode: 'nix',
+    highlight: true,
+  },
   {
     name: 'Objective C',
     mode: 'clike',