diff --git a/pkgs/development/libraries/haskell/dice/default.nix b/pkgs/development/libraries/haskell/dice/default.nix
new file mode 100644
index 00000000000..23d3339d348
--- /dev/null
+++ b/pkgs/development/libraries/haskell/dice/default.nix
@@ -0,0 +1,15 @@
+{ cabal, parsec, randomFu, transformers }:
+
+cabal.mkDerivation (self: {
+  pname = "dice";
+  version = "0.1";
+  sha256 = "1rfx3vh983f3gc6si661zimhjl47ip30l3pvf7dysjirr3gffgz1";
+  isLibrary = true;
+  isExecutable = true;
+  buildDepends = [ parsec randomFu transformers ];
+  meta = {
+    description = "Simplistic D&D style dice-rolling system";
+    license = self.stdenv.lib.licenses.publicDomain;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index e1681269181..30b08114e36 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -821,8 +821,16 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   derive = callPackage ../development/libraries/haskell/derive {};
 
+  dependentMap = callPackage ../development/libraries/haskell/dependent-map {};
+
+  dependentSum = callPackage ../development/libraries/haskell/dependent-sum {};
+
+  dependentSumTemplate = callPackage ../development/libraries/haskell/dependent-sum-template {};
+
   derp = callPackage ../development/libraries/haskell/derp {};
 
+  dice = callPackage ../development/libraries/haskell/dice {};
+
   diagrams = callPackage ../development/libraries/haskell/diagrams/diagrams.nix {};
   diagramsCairo = callPackage ../development/libraries/haskell/diagrams/cairo.nix {};
   diagramsCore = callPackage ../development/libraries/haskell/diagrams/core.nix {};