diff --git a/pkgs/development/python-modules/tox/default.nix b/pkgs/development/python-modules/tox/default.nix
index e98cb2493a88..7719687f2ea8 100644
--- a/pkgs/development/python-modules/tox/default.nix
+++ b/pkgs/development/python-modules/tox/default.nix
@@ -1,10 +1,12 @@
-{ buildPythonPackage
+{ lib
+, buildPythonPackage
 , fetchPypi
-, py
-, virtualenv
+, packaging
 , pluggy
-, setuptools_scm
+, py
 , six
+, virtualenv
+, setuptools_scm
 }:
 
 buildPythonPackage rec {
@@ -12,7 +14,7 @@ buildPythonPackage rec {
   version = "3.1.2";
 
   buildInputs = [ setuptools_scm ];
-  propagatedBuildInputs = [ py virtualenv pluggy six ];
+  propagatedBuildInputs = [ packaging pluggy py six virtualenv ];
 
   doCheck = false;
 
@@ -20,4 +22,10 @@ buildPythonPackage rec {
     inherit pname version;
     sha256 = "9f0cbcc36e08c2c4ae90d02d3d1f9a62231f974bcbc1df85e8045946d8261059";
   };
-}
\ No newline at end of file
+
+  meta = with lib; {
+    description = "Virtualenv-based automation of test activities";
+    homepage = https://tox.readthedocs.io/;
+    license = licenses.mit;
+  };
+}