diff --git a/pkgs/development/python-modules/clize/default.nix b/pkgs/development/python-modules/clize/default.nix
index c4e87fffe4da..a78b55704aec 100644
--- a/pkgs/development/python-modules/clize/default.nix
+++ b/pkgs/development/python-modules/clize/default.nix
@@ -6,6 +6,7 @@
 , od
 , pygments
 , pytestCheckHook
+, pythonOlder
 , python-dateutil
 , setuptools
 , sigtools