diff --git a/pkgs/development/python-modules/ipdb/default.nix b/pkgs/development/python-modules/ipdb/default.nix
index fbdfd5b7900..b34aa13bbcf 100644
--- a/pkgs/development/python-modules/ipdb/default.nix
+++ b/pkgs/development/python-modules/ipdb/default.nix
@@ -3,21 +3,21 @@
 , fetchPypi
 , ipython
 , isPyPy
-, isPy27
 , mock
+, toml
 }:
 
 buildPythonPackage rec {
   pname = "ipdb";
   version = "0.13.7";
-  disabled = isPyPy || isPy27;  # setupterm: could not find terminfo database
+  disabled = isPyPy;  # setupterm: could not find terminfo database
 
   src = fetchPypi {
     inherit pname version;
     sha256 = "178c367a61c1039e44e17c56fcc4a6e7dc11b33561261382d419b6ddb4401810";
   };
 
-  propagatedBuildInputs = [ ipython ];
+  propagatedBuildInputs = [ ipython toml ];
   checkInputs = [ mock ];
 
   preCheck = ''