diff --git a/pkgs/development/libraries/haskell/dimensional-tf/default.nix b/pkgs/development/libraries/haskell/dimensional-tf/default.nix
new file mode 100644
index 000000000000..70995ecb3ce7
--- /dev/null
+++ b/pkgs/development/libraries/haskell/dimensional-tf/default.nix
@@ -0,0 +1,14 @@
+{ cabal, numtypeTf, time }:
+
+cabal.mkDerivation (self: {
+  pname = "dimensional-tf";
+  version = "0.1.1";
+  sha256 = "0hhp2nx8xyk5ms3mzg1d3jhzm1b0bxz7aijxqasrxjq9p04jr2ci";
+  buildDepends = [ numtypeTf time ];
+  meta = {
+    homepage = "http://dimensional.googlecode.com/";
+    description = "Statically checked physical dimensions, implemented using type families";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 04052458738a..6f2db83c1941 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -711,6 +711,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   dimensional = callPackage ../development/libraries/haskell/dimensional {};
 
+  dimensionalTf = callPackage ../development/libraries/haskell/dimensional-tf {};
+
   directoryTree = callPackage ../development/libraries/haskell/directory-tree {};
 
   distributedProcess = callPackage ../development/libraries/haskell/distributed-process {};
@@ -1285,10 +1287,10 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   numtype = callPackage ../development/libraries/haskell/numtype {};
 
-  OneTuple = callPackage ../development/libraries/haskell/OneTuple {};
-
   numtypeTf = callPackage ../development/libraries/haskell/numtype-tf {};
 
+  OneTuple = callPackage ../development/libraries/haskell/OneTuple {};
+
   ObjectName = callPackage ../development/libraries/haskell/ObjectName {};
 
   oeis = callPackage ../development/libraries/haskell/oeis {};