diff --git a/pkgs/tools/networking/network-manager/vpnc.nix b/pkgs/tools/networking/network-manager/vpnc.nix
index 8d69415313d9..81d899527e73 100644
--- a/pkgs/tools/networking/network-manager/vpnc.nix
+++ b/pkgs/tools/networking/network-manager/vpnc.nix
@@ -1,14 +1,13 @@
 { stdenv, fetchurl, vpnc, intltool, pkgconfig, networkmanager, libsecret
 , withGnome ? true, gnome3, procps, kmod }:
-
-stdenv.mkDerivation rec {
-  name    = "${pname}${if withGnome then "-gnome" else ""}-${version}";
+let
   pname   = "NetworkManager-vpnc";
-  major   = "1.2";
-  version = "${major}.4";
+  version = "1.2.4";
+in stdenv.mkDerivation rec {
+  name    = "${pname}${if withGnome then "-gnome" else ""}-${version}";
 
   src = fetchurl {
-    url    = "mirror://gnome/sources/${pname}/${major}/${pname}-${version}.tar.xz";
+    url    = "mirror://gnome/sources/${pname}/${stdenv.lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
     sha256 = "39c7516418e90208cb534c19628ce40fd50eba0a08b2ebaef8da85720b10fb05";
   };
 
@@ -31,6 +30,13 @@ stdenv.mkDerivation rec {
        --replace "/sbin/modprobe" "${kmod}/bin/modprobe"
   '';
 
+  passthru = {
+    updateScript = gnome3.updateScript {
+      packageName = pname;
+      attrPath = "networkmanager-vpnc";
+    };
+  };
+
   meta = {
     description = "NetworkManager's VPNC plugin";
     inherit (networkmanager.meta) maintainers platforms;