diff --git a/pkgs/development/python-modules/sipsimple/default.nix b/pkgs/development/python-modules/sipsimple/default.nix
new file mode 100644
index 000000000000..1df36dcf5d0a
--- /dev/null
+++ b/pkgs/development/python-modules/sipsimple/default.nix
@@ -0,0 +1,41 @@
+{ stdenv
+, buildPythonPackage
+, fetchdarcs
+, isPy3k
+, pkgs
+, cython
+, dnspython
+, dateutil
+, xcaplib
+, msrplib
+, lxml
+, python-otr
+}:
+
+buildPythonPackage rec {
+  pname = "sipsimple";
+  version = "3.1.1";
+  disabled = isPy3k;
+
+  src = fetchdarcs {
+    url = http://devel.ag-projects.com/repositories/python-sipsimple;
+    rev = "release-${version}";
+    sha256 = "0jdilm11f5aahxrzrkxrfx9sgjgkbla1r0wayc5dzd2wmjrdjyrg";
+  };
+
+  preConfigure = ''
+    chmod +x ./deps/pjsip/configure ./deps/pjsip/aconfigure
+  '';
+
+  nativeBuildInputs = [ pkgs.pkgconfig ];
+  buildInputs = with pkgs; [ alsaLib ffmpeg libv4l sqlite libvpx ];
+  propagatedBuildInputs = [ cython pkgs.openssl dnspython dateutil xcaplib msrplib lxml python-otr ];
+
+  meta = with stdenv.lib; {
+    description = "SIP SIMPLE implementation for Python";
+    homepage = http://sipsimpleclient.org/;
+    license = licenses.gpl3;
+    maintainers = with maintainers; [ pSub ];
+  };
+
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 66f4724daa18..8a428be33be5 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3835,33 +3835,7 @@ in {
 
   sh = callPackage ../development/python-modules/sh { };
 
-  sipsimple = buildPythonPackage rec {
-    name = "sipsimple-${version}";
-    version = "3.1.1";
-    disabled = isPy3k;
-
-    src = pkgs.fetchdarcs {
-      url = http://devel.ag-projects.com/repositories/python-sipsimple;
-      rev = "release-${version}";
-      sha256 = "0jdilm11f5aahxrzrkxrfx9sgjgkbla1r0wayc5dzd2wmjrdjyrg";
-    };
-
-    preConfigure = ''
-      chmod +x ./deps/pjsip/configure ./deps/pjsip/aconfigure
-    '';
-
-    nativeBuildInputs = [ pkgs.pkgconfig ];
-    buildInputs = with pkgs; [ alsaLib ffmpeg libv4l sqlite libvpx ];
-    propagatedBuildInputs = with self; [ cython pkgs.openssl dnspython dateutil xcaplib msrplib lxml python-otr ];
-
-    meta = {
-      description = "SIP SIMPLE implementation for Python";
-      homepage = http://sipsimpleclient.org/;
-      license = licenses.gpl3;
-      maintainers = with maintainers; [ pSub ];
-    };
-  };
-
+  sipsimple = callPackage ../development/python-modules/sipsimple { };
 
   six = callPackage ../development/python-modules/six { };