diff --git a/pkgs/tools/networking/haproxy/default.nix b/pkgs/tools/networking/haproxy/default.nix
index 58e238c3c02..4119afa5228 100644
--- a/pkgs/tools/networking/haproxy/default.nix
+++ b/pkgs/tools/networking/haproxy/default.nix
@@ -1,19 +1,20 @@
-{ stdenv, pkgs, fetchurl }:
+{ stdenv, pkgs, fetchurl, openssl }:
 
 stdenv.mkDerivation rec {
-  version = "1.5.11";
+  majorVersion = "1.5";
+  version = "${majorVersion}.11";
   name = "haproxy-${version}";
 
   src = fetchurl {
-    url = "http://haproxy.1wt.eu/download/1.5/src/${name}.tar.gz";
+    url = "http://haproxy.1wt.eu/download/${majorVersion}/src/${name}.tar.gz";
     sha256 = "1gwkyy06c8bw5vcjv82hai554zrd415jjsb1iafg01c4k1ia8nlb";
   };
 
-  buildInputs = [ ];
+  buildInputs = [ openssl ];
 
   # TODO: make it work on darwin/bsd as well
   preConfigure = ''
-    export makeFlags="TARGET=linux2628 PREFIX=$out"
+    export makeFlags="TARGET=linux2628 PREFIX=$out USE_OPENSSL=yes"
   '';
 
   meta = {
@@ -29,9 +30,6 @@ stdenv.mkDerivation rec {
     homepage = http://haproxy.1wt.eu;
     maintainers = [ stdenv.lib.maintainers.garbas ];
     platforms = stdenv.lib.platforms.linux;
-    /* TODO license = [
-       stdenv.lib.licenses.gpl2
-       stdenv.lib.licenses.lgpl21
-    ];*/
+    license = stdenv.lib.licenses.gpl2;
   };
 }