diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index e160c3d6a47..52531d62103 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1160,6 +1160,28 @@ in modules // {
     };
   };
 
+ asn1ate = buildPythonPackage rec {
+  pname = "asn1ate";
+  date = "20160810";
+  name = "${pname}-unstable-${date}";
+
+  src = pkgs.fetchFromGitHub {
+    sha256 = "04pddr1mh2v9qq8fg60czwvjny5qwh4nyxszr3qc4bipiiv2xk9w";
+    rev = "c56104e8912400135509b584d84423ee05a5af6b";
+    owner = "kimgr";
+    repo = pname;
+  };
+
+  propagatedBuildInputs = with self; [ pyparsing ];
+
+  meta = with stdenv.lib; {
+    description = "Python library for translating ASN.1 into other forms";
+    license = licenses.bsd3;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ leenaars ];
+  };
+};
+
   atomiclong = buildPythonPackage rec {
     version = "0.1.1";
     name = "atomiclong-${version}";