diff --git a/pkgs/development/python-modules/generic/builder.sh b/pkgs/development/python-modules/generic/builder.sh
index 52b66aaf6a67..43ad139fe74d 100644
--- a/pkgs/development/python-modules/generic/builder.sh
+++ b/pkgs/development/python-modules/generic/builder.sh
@@ -1,10 +1,6 @@
 source $stdenv/setup
 
 # do not allow distutils to make downloads, whatever install command is used
-export PYTHONPATH="${setuptools}/lib/${python.libPrefix}:$PYTHONPATH"
 export PYTHONPATH="${offlineDistutils}/lib/${python.libPrefix}:$PYTHONPATH"
 
-# enable pth files for dependencies
-export PYTHONPATH="${site}/lib/${python.libPrefix}/site-packages:$PYTHONPATH"
-
 genericBuild