diff --git a/default.nix b/default.nix
index 44b8f60..6397779 100644
--- a/default.nix
+++ b/default.nix
@@ -5,4 +5,6 @@ let
 
 in rec {
 
+  usrsctp = callPackage ./pkgs/usrsctp { };
+
 }
diff --git a/flake.nix b/flake.nix
index e15e7d4..e09b0ac 100644
--- a/flake.nix
+++ b/flake.nix
@@ -27,10 +27,9 @@
     overlay = next: prev: 
       let localPkgs = import ./. { pkgs = next; };
       in {
-        #inherit (localPkgs)
-        #  foo
-        #  bar
-        #  ;  
+        inherit (localPkgs)
+          usrsctp
+          ;
       };
 
   };
diff --git a/pkgs/usrsctp/default.nix b/pkgs/usrsctp/default.nix
new file mode 100644
index 0000000..47f0edd
--- /dev/null
+++ b/pkgs/usrsctp/default.nix
@@ -0,0 +1,26 @@
+{ lib, stdenv, fetchFromGitHub, which, libtool, autoconf, automake }:
+
+stdenv.mkDerivation rec {
+  pname = "usrsctp";
+  version = "0.9.5.0";
+
+  src = fetchFromGitHub {
+    owner = "sctplab";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-Sengtkg4UoA03cPy5+dRSr5qKIttWHEKn48udOP8zYI=";
+  };
+
+  nativeBuildInputs = [ which libtool autoconf automake ];
+
+  NIX_CFLAGS_COMPILE = "-O2";
+
+  preConfigure = "./bootstrap";
+
+  meta = with lib; {
+    description = "A userland SCTP stack supporting FreeBSD, Linux, Mac OS X and Windows";
+    homepage = src.meta.homepage;
+    maintainers = with maintainers; [ aw ];
+    license = licenses.bsd3;
+  };
+}