diff --git a/pkgs/development/libraries/libass/default.nix b/pkgs/development/libraries/libass/default.nix
new file mode 100644
index 000000000000..499639b3a87c
--- /dev/null
+++ b/pkgs/development/libraries/libass/default.nix
@@ -0,0 +1,17 @@
+{ stdenv, fetchurl, freetype, fontconfig, pkgconfig, enca ? null }:
+
+stdenv.mkDerivation rec {
+  name = "libass-0.9.11";
+
+  src = fetchurl {
+    url = "http://libass.googlecode.com/files/${name}.tar.bz2";
+    sha256 = "0p3li523s8n85kfh5xdbbfffr17z8xdh2qcgvdg7ki1myv6agl7z";
+  };
+
+  buildInputs = [ freetype fontconfig enca pkgconfig ];
+
+  meta = {
+    homepage = http://code.google.com/p/libass/;
+    maintainers = [ stdenv.lib.maintainers.urkud ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 43ff6ab68791..98c6a51b0489 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -3383,6 +3383,8 @@ let
 
   libarchive = callPackage ../development/libraries/libarchive { };
 
+  libass = callPackage ../development/libraries/libass { };
+
   libassuan1 = callPackage ../development/libraries/libassuan1 { };
 
   libassuan = callPackage ../development/libraries/libassuan { };