diff --git a/pkgs/development/python-modules/supervise_api/default.nix b/pkgs/development/python-modules/supervise_api/default.nix
index 85f0106db65d..99c6dfaf9397 100644
--- a/pkgs/development/python-modules/supervise_api/default.nix
+++ b/pkgs/development/python-modules/supervise_api/default.nix
@@ -2,6 +2,8 @@
 , buildPythonPackage
 , fetchPypi
 , supervise
+, isPy3k
+, whichcraft
 }:
 
 buildPythonPackage rec {
@@ -15,7 +17,11 @@ buildPythonPackage rec {
     sha256 = "e6982633a924cb5192d2291d25b366ff311876a31b0f5961471b39d87397ef5b";
   };
 
-  propagatedBuildInputs = [ supervise ];
+  propagatedBuildInputs = [
+    supervise
+  ] ++ lib.optionals ( !isPy3k ) [
+    whichcraft
+  ];
 
   # no tests
   doCheck = false;