diff --git a/pkgs/os-specific/linux/wireguard/default.nix b/pkgs/os-specific/linux/wireguard/default.nix
index 3e5f6ae7480..df94d17012e 100644
--- a/pkgs/os-specific/linux/wireguard/default.nix
+++ b/pkgs/os-specific/linux/wireguard/default.nix
@@ -1,14 +1,14 @@
 { stdenv, fetchgit, libmnl, kernel ? null }:
 
 let
-  name = "wireguard-${version}";
+  name = "wireguard-unstable-${version}";
 
-  version = "20160708";
+  version = "2016-07-22";
 
   src = fetchgit {
     url    = "https://git.zx2c4.com/WireGuard";
-    rev    = "dcc2583fe0618931e51aedaeeddde356d123acb2";
-    sha256 = "1ciyjpp8c3fv95y1cypk9qyqynp8cqyh2676afq2hd33110d37ni";
+    rev    = "8e8bf6f848c324603827c0e57f0856d5866ac32d";
+    sha256 = "11qrf9fxm6mkwjnjq7dgbisdric5w22cyfkqc6zx9fla2dz99mxk";
   };
 
   meta = with stdenv.lib; {