diff --git a/pkgs/development/libraries/haskell/nats/default.nix b/pkgs/development/libraries/haskell/nats/default.nix
new file mode 100644
index 00000000000..02f5c289836
--- /dev/null
+++ b/pkgs/development/libraries/haskell/nats/default.nix
@@ -0,0 +1,13 @@
+{ cabal }:
+
+cabal.mkDerivation (self: {
+  pname = "nats";
+  version = "0.1";
+  sha256 = "08gh7jjmws70919hmqqmvnfqcpxr34f03jmg3lzmmhqvr15gm1vy";
+  meta = {
+    homepage = "http://github.com/ekmett/nats/";
+    description = "Haskell 98 natural numbers";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 3c193a0b6c2..d11c5c6ad70 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1242,6 +1242,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   NanoProlog = callPackage ../development/libraries/haskell/NanoProlog {};
 
+  nats = callPackage ../development/libraries/haskell/nats {};
+
   netlist = callPackage ../development/libraries/haskell/netlist {};
 
   netlistToVhdl = callPackage ../development/libraries/haskell/netlist-to-vhdl {};