diff --git a/pkgs/applications/networking/bittorrentsync/default.nix b/pkgs/applications/networking/bittorrentsync/default.nix
index c6277da704e..8a2c8a6e07e 100644
--- a/pkgs/applications/networking/bittorrentsync/default.nix
+++ b/pkgs/applications/networking/bittorrentsync/default.nix
@@ -1,47 +1,43 @@
 { stdenv, fetchurl, patchelf }:
 
-# this package contains the daemon version of bittorrent sync
-# it's unfortunately closed source.
-
 let
-  # TODO: arm, ppc, osx
-
   arch = if stdenv.system == "x86_64-linux" then "x64"
     else if stdenv.system == "i686-linux" then "i386"
     else throw "Bittorrent Sync for: ${stdenv.system} not supported!";
-    
-  interpreter = if stdenv.system == "x86_64-linux" then "ld-linux-x86-64.so.2"
-    else if stdenv.system == "i686-linux" then "ld-linux.so.2"
+
+  sha256 = if stdenv.system == "x86_64-linux" then "1x95pag8ncjx3svm4424fjk5nmbdg8m87fsxy9sc63ba3qs9645j"
+    else if stdenv.system == "i686-linux" then "0l8d85ib6kbpz5sh9v0qga03i4xph61iiy9xlhazm9h30d5a6l8v"
     else throw "Bittorrent Sync for: ${stdenv.system} not supported!";
 
-  version = "1.2.91";
-  sha256 = if stdenv.system == "x86_64-linux" then "1rx5mmk3ffkh6dbm0m33nyx6spsxqjw9djclcf9x9bs3zfyzgmnd"
-    else if stdenv.system == "i686-linux" then "1566mp01149gsb57dv87420w1vq2f3adp6g1c90xdxjxzd67yqpw"
-    else throw "Bittorrent Sync for: ${stdenv.system} not supported!";
+  libPath = stdenv.lib.makeLibraryPath [ stdenv.gcc.libc ];
+in
+stdenv.mkDerivation rec {
+  name = "btsync-${version}";
+  version = "1.3.77";
 
-in stdenv.mkDerivation {
-  name = "btsync-bin-${version}";
-  src = fetchurl {
-    url = "http://syncapp.bittorrent.com/${version}/btsync_${arch}-${version}.tar.gz";
+  src  = fetchurl {
+    url  = "http://download-lb.utorrent.com/endpoint/btsync/os/linux-${arch}/track/stable";
+    name = "btsync-${arch}-${version}.tar.gz";
     inherit sha256;
   };
 
-  sourceRoot = ".";
+  dontStrip   = true; # Don't strip, otherwise patching the rpaths breaks
+  sourceRoot  = ".";
+  buildInputs = [ patchelf ];
 
   installPhase = ''
     ensureDir "$out/bin/"
     cp -r "btsync" "$out/bin/"
 
-    patchelf --set-interpreter ${stdenv.glibc}/lib/${interpreter} \
-      "$out/bin/btsync"
+    patchelf --interpreter "$(cat $NIX_GCC/nix-support/dynamic-linker)" \
+      --set-rpath ${libPath} "$out/bin/btsync"
   '';
 
-  buildInputs = [ patchelf ];
-
   meta = {
-    homepage = "http://labs.bittorrent.com/experiments/sync.html";
     description = "Automatically sync files via secure, distributed technology";
-    license = stdenv.lib.licenses.unfree;
-    maintainers = [ stdenv.lib.maintainers.iElectric ];
+    homepage    = "http://www.bittorrent.com/sync";
+    license     = stdenv.lib.licenses.unfreeRedistributable;
+    platforms   = stdenv.lib.platforms.linux;
+    maintainers = with stdenv.lib.maintainers; [ iElectric thoughtpolice ];
   };
 }