diff --git a/pkgs/development/python-modules/python-swiftclient/default.nix b/pkgs/development/python-modules/python-swiftclient/default.nix
index ed72db7a582..357ba701d18 100644
--- a/pkgs/development/python-modules/python-swiftclient/default.nix
+++ b/pkgs/development/python-modules/python-swiftclient/default.nix
@@ -5,6 +5,7 @@
 , openstacksdk
 , pbr
 , python-keystoneclient
+, pythonOlder
 , stestr
 }: