diff --git a/pkgs/development/python-modules/base58/default.nix b/pkgs/development/python-modules/base58/default.nix
index 6fe7a111b5d4..416eba18dec3 100644
--- a/pkgs/development/python-modules/base58/default.nix
+++ b/pkgs/development/python-modules/base58/default.nix
@@ -1,6 +1,7 @@
 { lib
 , buildPythonPackage
 , fetchPypi
+, py
 , pyhamcrest
 , pytest-benchmark
 , pytestCheckHook
@@ -10,6 +11,7 @@
 buildPythonPackage rec {
   pname = "base58";
   version = "2.1.1";
+  format = "setuptools";
   disabled = pythonOlder "3.5";
 
   src = fetchPypi {
@@ -18,6 +20,7 @@ buildPythonPackage rec {
   };
 
   checkInputs = [
+    py
     pyhamcrest
     pytest-benchmark
     pytestCheckHook