diff --git a/pkgs/development/python-modules/nbsphinx/default.nix b/pkgs/development/python-modules/nbsphinx/default.nix
index 979b357607e..2622b815f1e 100644
--- a/pkgs/development/python-modules/nbsphinx/default.nix
+++ b/pkgs/development/python-modules/nbsphinx/default.nix
@@ -7,7 +7,6 @@
 , nbformat
 , sphinx
 , traitlets
-, python
 , isPy3k
 }: