diff --git a/pkgs/development/libraries/aterm/aterm-2.0.5.nix b/pkgs/development/libraries/aterm/aterm-2.0.5.nix
new file mode 100644
index 000000000000..9ed878d37752
--- /dev/null
+++ b/pkgs/development/libraries/aterm/aterm-2.0.5.nix
@@ -0,0 +1,10 @@
+{stdenv, fetchurl}: derivation {
+  name = "aterm-2.0.5";
+  system = stdenv.system;
+  builder = ./builder.sh;
+  src = fetchurl {
+    url = http://www.cwi.nl/projects/MetaEnv/aterm/aterm-2.0.5.tar.gz;
+    md5 = "68aefb0c10b2ab876b8d3c0b2d0cdb1b";
+  };
+  stdenv = stdenv;
+}
diff --git a/pkgs/system/all-packages-generic.nix b/pkgs/system/all-packages-generic.nix
index b518cef670d5..4f07e585e57b 100644
--- a/pkgs/system/all-packages-generic.nix
+++ b/pkgs/system/all-packages-generic.nix
@@ -236,6 +236,11 @@
     stdenv = stdenv;
   };
 
+  aterm205 = (import ../development/libraries/aterm/aterm-2.0.5.nix) {
+    fetchurl = fetchurl;
+    stdenv = stdenv;
+  };
+
   sdf2 = (import ../development/tools/parsing/sdf2) {
     fetchurl = fetchurl;
     stdenv = stdenv;