diff --git a/pkgs/development/python-modules/wrf-python/default.nix b/pkgs/development/python-modules/wrf-python/default.nix
index 4fa3b423617..14e81df65fc 100644
--- a/pkgs/development/python-modules/wrf-python/default.nix
+++ b/pkgs/development/python-modules/wrf-python/default.nix
@@ -8,7 +8,6 @@
 , numpy
 , netcdf4
 , setuptools
-, pythonOlder
 }:
 
 buildPythonPackage rec {