diff --git a/pkgs/development/python-modules/xdot/default.nix b/pkgs/development/python-modules/xdot/default.nix
index 526376a4163..f9a735c97ab 100644
--- a/pkgs/development/python-modules/xdot/default.nix
+++ b/pkgs/development/python-modules/xdot/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchPypi
+{ lib, buildPythonPackage, fetchPypi, isPy3k
 , wrapGAppsHook, gobjectIntrospection, pygobject3, graphviz, gnome3 }:
 
 buildPythonPackage rec {
@@ -10,6 +10,8 @@ buildPythonPackage rec {
     sha256 = "01v9vmgdxz1q2m2vq2b4aqx4ycw7grc0l4is673ygvyg9rk02dx3";
   };
 
+  disabled = !isPy3k;
+
   nativeBuildInputs = [ wrapGAppsHook ];
   propagatedBuildInputs = [ gobjectIntrospection pygobject3 graphviz gnome3.gtk ];