diff --git a/pkgs/development/compilers/ghc/6.10.1.nix b/pkgs/development/compilers/ghc/6.10.1.nix
new file mode 100644
index 000000000000..deca9d19f1d2
--- /dev/null
+++ b/pkgs/development/compilers/ghc/6.10.1.nix
@@ -0,0 +1,27 @@
+{stdenv, fetchurl, libedit, ghc, perl, gmp, ncurses}:
+
+stdenv.mkDerivation rec {
+  version = "6.10.1";
+  
+  name = "ghc-${version}";
+  
+  homepage = "http://haskell.org/ghc";
+
+  src = fetchurl {
+    url = "${homepage}/dist/${version}/${name}-src.tar.bz2";
+    sha256 = "16q08cxxsmh4hgjhvkl739pc1hh81gljycfq1d2z6m1ld3jpbi22";
+  };
+
+  buildInputs = [ghc libedit perl gmp];
+
+  configureFlags=[
+    "--with-gmp-libraries=${gmp}/lib"
+    "--with-gmp-includes=${gmp}/include"
+    "--with-gcc=${stdenv.gcc}/bin/gcc"
+  ];
+
+  meta = {
+    inherit homepage;
+    description = "The Glasgow Haskell Compiler";
+  };
+}
diff --git a/pkgs/development/compilers/ghc/6.10.2.nix b/pkgs/development/compilers/ghc/6.10.2.nix
index 9420e9fea4ad..8568c5661450 100644
--- a/pkgs/development/compilers/ghc/6.10.2.nix
+++ b/pkgs/development/compilers/ghc/6.10.2.nix
@@ -17,7 +17,6 @@ stdenv.mkDerivation rec {
   configureFlags=[
     "--with-gmp-libraries=${gmp}/lib"
     "--with-gmp-includes=${gmp}/include"
-    #"--with-readline-libraries=${readline}/lib"
     "--with-gcc=${stdenv.gcc}/bin/gcc"
   ];
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index e955bbe0ee4d..97ac20c2b058 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1873,6 +1873,14 @@ let
     };
   });
 
+  haskellPackages_ghc6101 = recurseIntoAttrs (import ./haskell-packages.nix {
+    inherit pkgs;
+    ghc = import ../development/compilers/ghc/6.10.1.nix {
+      inherit fetchurl stdenv perl ncurses gmp libedit;
+      ghc = ghc6101Binary;
+    };
+  });
+
   haskellPackages_ghc6102 = recurseIntoAttrs (import ./haskell-packages.nix {
     inherit pkgs;
     ghc = import ../development/compilers/ghc/6.10.2.nix {