diff --git a/pkgs/development/python-modules/mail-parser/default.nix b/pkgs/development/python-modules/mail-parser/default.nix
index d3be0844f6fd..42123445fc53 100644
--- a/pkgs/development/python-modules/mail-parser/default.nix
+++ b/pkgs/development/python-modules/mail-parser/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, python, pythonOlder, glibcLocales, fetchFromGitHub, six, simplejson }:
+{ lib, buildPythonPackage, python, glibcLocales, fetchFromGitHub, six, simplejson }:
 
 buildPythonPackage rec {
   pname = "mail-parser";