diff --git a/pkgs/tools/misc/mbuffer/default.nix b/pkgs/tools/misc/mbuffer/default.nix
index 51c0ebc82aeb..4c4204badb19 100644
--- a/pkgs/tools/misc/mbuffer/default.nix
+++ b/pkgs/tools/misc/mbuffer/default.nix
@@ -3,19 +3,19 @@
  } :
 
 stdenv.mkDerivation rec {
-  version = "20160613";
+  version = "20170806";
   name = "mbuffer-${version}";
 
   src = fetchurl {
     url = "http://www.maier-komor.de/software/mbuffer/mbuffer-${version}.tgz";
-    sha256 = "1za9yqfn23axnp4zymdsrjkqcci3wxywqw3bv4dxms57q1ljiab7";
+    sha256 = "0kbvxrd1k0509whgyl7w20cmqn5q16vjjh7d9glpl2j4lfd66ljw";
   };
 
   buildInputs = [ openssl ];
 
   meta = {
     homepage = http://www.maier-komor.de/mbuffer.html;
-    description  = "mbuffer is a tool for buffering data streams with a large set of unique features";
+    description  = "A tool for buffering data streams with a large set of unique features";
     license = stdenv.lib.licenses.gpl3;
     maintainers = with stdenv.lib.maintainers; [ tokudan ];
     platforms = with stdenv.lib.platforms; allBut darwin;