diff --git a/pkgs/by-name/go/golex/package.nix b/pkgs/by-name/go/golex/package.nix
new file mode 100644
index 000000000000..99884d4d2d02
--- /dev/null
+++ b/pkgs/by-name/go/golex/package.nix
@@ -0,0 +1,36 @@
+{
+  lib,
+  buildGoModule,
+  fetchFromGitLab,
+  fetchpatch2,
+}:
+
+buildGoModule rec {
+  pname = "golex";
+  version = "1.1.0";
+
+  src = fetchFromGitLab {
+    owner = "cznic";
+    repo = "golex";
+    rev = "v${version}";
+    hash = "sha256-0Z2oE00vGnH2BBNmKAjRhy//fEbT5AQ+CKLIUr+NPwY=";
+  };
+
+  patches = [
+    # fix a unicode mismatch to make test pass
+    (fetchpatch2 {
+      url = "https://gitlab.com/cznic/golex/-/commit/a735a3b62b5fb36a715ba4e280270f9ca91c5e59.patch";
+      hash = "sha256-Q/Vyh91IwL3ConWpJU0akslkaVhHTkBmrMbmDVU3Txs=";
+    })
+  ];
+
+  vendorHash = "sha256-Ig4cxZepvmI1EH0j2fuQ33jHOLWfS40UE+A4UHdo8oE=";
+
+  meta = {
+    description = "Lex/flex like utility rendering .l formated data to Go source code";
+    homepage = "https://pkg.go.dev/modernc.org/golex";
+    license = lib.licenses.bsd3;
+    mainProgram = "golex";
+    maintainers = with lib.maintainers; [ aleksana ];
+  };
+}