diff --git a/pkgs/applications/editors/emacs/elisp-packages/manual-packages/gn-mode-from-sources/package.nix b/pkgs/applications/editors/emacs/elisp-packages/manual-packages/gn-mode-from-sources/package.nix
new file mode 100644
index 000000000000..adae6e51625e
--- /dev/null
+++ b/pkgs/applications/editors/emacs/elisp-packages/manual-packages/gn-mode-from-sources/package.nix
@@ -0,0 +1,28 @@
+{
+  lib,
+  gn,
+  melpaBuild,
+}:
+
+melpaBuild {
+  pname = "gn-mode-from-sources";
+  ename = "gn-mode";
+  version = "0-unstable-${gn.version}";
+  inherit (gn) src;
+
+  files = ''("misc/emacs/gn-mode.el")'';
+
+  # Fixes the malformed header error
+  postPatch = ''
+    substituteInPlace misc/emacs/gn-mode.el \
+      --replace-fail ";;; gn-mode.el - " ";;; gn-mode.el --- "
+  '';
+
+  ignoreCompilationError = false;
+
+  meta = {
+    inherit (gn.meta) homepage license;
+    maintainers = with lib.maintainers; [ ];
+    description = "Major mode for editing GN files; taken from GN sources";
+  };
+}