diff --git a/Nix/Parser.hs b/Nix/Parser.hs
index e870e89..22bacab 100644
--- a/Nix/Parser.hs
+++ b/Nix/Parser.hs
@@ -1,7 +1,12 @@
 {-# LANGUAGE CPP #-}
 {-# LANGUAGE OverloadedStrings #-}
 
-module Nix.Parser (parseNixFile, parseNixString, Result(..)) where
+module Nix.Parser (
+  parseNixFile,
+  parseNixString,
+  parseNixText,
+  Result(..)
+  ) where
 
 import           Control.Applicative
 import           Control.Monad
@@ -244,3 +249,6 @@ parseNixFile = parseFromFileEx $ nixExpr <* eof
 
 parseNixString :: String -> Result NExpr
 parseNixString = parseFromString $ nixExpr <* eof
+
+parseNixText :: Text -> Result NExpr
+parseNixText = parseNixString . unpack
diff --git a/default.nix b/default.nix
index 45ab74e..70ae4ed 100644
--- a/default.nix
+++ b/default.nix
@@ -3,4 +3,6 @@ let
   haskellPackages = nixpkgs.pkgs.haskell.packages.${compiler};
 in
 
-haskellPackages.callPackage ./project.nix {}
+haskellPackages.callPackage ./project.nix {
+  pkgs = nixpkgs;
+}
diff --git a/hnix.cabal b/hnix.cabal
index 3ebff86..48fd5c8 100644
--- a/hnix.cabal
+++ b/hnix.cabal
@@ -1,5 +1,5 @@
 Name:                hnix
-Version:             0.2.2
+Version:             0.2.3
 Synopsis:            Haskell implementation of the Nix language
 Description:
   Haskell implementation of the Nix language.
diff --git a/project.nix b/project.nix
index dbe0ed4..7a975d0 100644
--- a/project.nix
+++ b/project.nix
@@ -1,11 +1,19 @@
 { mkDerivation, ansi-wl-pprint, base, containers, data-fix, parsers
 , stdenv, tasty, tasty-hunit, tasty-th, text, transformers
-, trifecta, unordered-containers, cabal-install
+, trifecta, unordered-containers, cabal-install, pkgs
 }:
+
+let
+  inherit (builtins) filterSource;
+  inherit (pkgs.lib) elem;
+in
+
 mkDerivation {
   pname = "hnix";
-  version = "0.2.2";
-  src = ./.;
+  version = "0.2.3";
+  src = let
+    notNamed = list: name: !(elem (baseNameOf name) list);
+  in filterSource (n: _: notNamed [".git" "dist" "benchmarks"] n) ./.;
   isLibrary = true;
   isExecutable = true;
   buildDepends = [