diff --git a/pkgs/development/python-modules/generic/default.nix b/pkgs/development/python-modules/generic/default.nix
index 0b50e10f88dc..67f03d36fa87 100644
--- a/pkgs/development/python-modules/generic/default.nix
+++ b/pkgs/development/python-modules/generic/default.nix
@@ -116,7 +116,7 @@ python.stdenv.mkDerivation (builtins.removeAttrs attrs ["disabled"] // {
        tmp_path=$(mktemp -d)
        export PATH="$tmp_path/bin:$PATH"
        export PYTHONPATH="$tmp_path/${python.sitePackages}:$PYTHONPATH"
-       mkdir -p $tmp_path/lib/${python.libPrefix}/site-packages
+       mkdir -p $tmp_path/${python.sitePackages}
        ${bootstrapped-pip}/bin/pip install -e . --prefix $tmp_path
     fi
     ${postShellHook}