diff --git a/pkgs/development/python-modules/generic/default.nix b/pkgs/development/python-modules/generic/default.nix
index 6583373f322a..cdf759aa7f69 100644
--- a/pkgs/development/python-modules/generic/default.nix
+++ b/pkgs/development/python-modules/generic/default.nix
@@ -47,6 +47,8 @@ python.stdenv.mkDerivation (attrs // {
 
   name = namePrefix + name;
 
+  phases = "unpackPhase patchPhase configurePhase buildPhase installPhase checkPhase fixupPhase distPhase";
+
   buildInputs = [ python wrapPython setuptools ] ++ buildInputs ++ pythonPath;
 
   # setuptoolsSite is responsible for loading pth files