diff --git a/pkgs/development/python-modules/generic/default.nix b/pkgs/development/python-modules/generic/default.nix
index 888f58d7748..527d4f3108f 100644
--- a/pkgs/development/python-modules/generic/default.nix
+++ b/pkgs/development/python-modules/generic/default.nix
@@ -53,6 +53,9 @@ python.stdenv.mkDerivation (attrs // {
 
   buildInputs = [ python wrapPython setuptools ] ++ buildInputs ++ pythonPath;
 
+  # recursivePthLoader is responsible for loading pth files
+  propagatedBuildInputs = propagatedBuildInputs ++ [ recursivePthLoader ];
+
   buildInputStrings = map toString buildInputs;
 
   pythonPath = [ setuptools ] ++ pythonPath;