diff --git a/pkgs/applications/editors/emacs/modes/haskell/builder.sh b/pkgs/applications/editors/emacs/modes/haskell/builder.sh
new file mode 100644
index 000000000000..fff90a5d69cd
--- /dev/null
+++ b/pkgs/applications/editors/emacs/modes/haskell/builder.sh
@@ -0,0 +1,6 @@
+. $stdenv/setup
+
+mkdir -p $out/emacs/site-lisp
+tar zxvf $src
+cp haskell-mode*/*.el $out/emacs/site-lisp
+cp haskell-mode*/*.hs $out/emacs/site-lisp
diff --git a/pkgs/applications/editors/emacs/modes/haskell/default.nix b/pkgs/applications/editors/emacs/modes/haskell/default.nix
new file mode 100644
index 000000000000..33a29ae7ddef
--- /dev/null
+++ b/pkgs/applications/editors/emacs/modes/haskell/default.nix
@@ -0,0 +1,8 @@
+{stdenv, fetchurl}: stdenv.mkDerivation {
+  name = "haskell-mode-1.45";
+  builder = ./builder.sh;
+  src = fetchurl {
+    url = http://www.haskell.org/haskell-mode/haskell-mode-1.45.tar.gz;
+    md5 = "c609998580cdb9ca8888c7d47d22ca3b";
+  };
+}
diff --git a/pkgs/system/all-packages-generic.nix b/pkgs/system/all-packages-generic.nix
index 984bd27aa34a..c4ec648e8b61 100644
--- a/pkgs/system/all-packages-generic.nix
+++ b/pkgs/system/all-packages-generic.nix
@@ -916,6 +916,10 @@ rec {
     inherit fetchurl stdenv;
   };
 
+  haskellMode = (import ../applications/editors/emacs/modes/haskell) {
+    inherit fetchurl stdenv;
+  };
+
   nano = (import ../applications/editors/nano) {
     inherit fetchurl stdenv ncurses;
   };