diff --git a/pkgs/development/tools/documentation/haddock/2.13.1.nix b/pkgs/development/tools/documentation/haddock/2.13.1.nix
new file mode 100644
index 00000000000..1eed852f537
--- /dev/null
+++ b/pkgs/development/tools/documentation/haddock/2.13.1.nix
@@ -0,0 +1,18 @@
+{ cabal, alex, Cabal, deepseq, filepath, ghcPaths, happy, xhtml }:
+
+cabal.mkDerivation (self: {
+  pname = "haddock";
+  version = "2.13.1";
+  sha256 = "0zsflbc3ayjsn542sa58zl62dd78ykr489f18sh467hrrnaj4pkf";
+  isLibrary = true;
+  isExecutable = true;
+  buildDepends = [ Cabal deepseq filepath ghcPaths xhtml ];
+  buildTools = [ alex happy ];
+  meta = {
+    homepage = "http://www.haskell.org/haddock/";
+    description = "A documentation-generation tool for Haskell libraries";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+    maintainers = [ self.stdenv.lib.maintainers.andres ];
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 44bb7aef8c7..3794aa970a2 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -145,7 +145,7 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
     zlib         = self.zlib_0_5_4_0;           # 7.6 ok
     cabalInstall = self.cabalInstall_1_16_0;    # 7.6 ok
     alex         = self.alex_3_0_1;             # 7.6 ok
-    haddock      = self.haddock_2_12_0;         # 7.6 ok
+    haddock      = self.haddock_2_13_1;         # 7.6 ok
     happy        = self.happy_1_18_10;          # 7.6 ok
   };
 
@@ -1816,7 +1816,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
   haddock_2_10_0 = callPackage ../development/tools/documentation/haddock/2.10.0.nix {};
   haddock_2_11_0 = callPackage ../development/tools/documentation/haddock/2.11.0.nix {};
   haddock_2_12_0 = callPackage ../development/tools/documentation/haddock/2.12.0.nix {};
-  haddock = self.haddock_2_12_0;
+  haddock_2_13_1 = callPackage ../development/tools/documentation/haddock/2.13.1.nix {};
+  haddock = self.haddock_2_13_1;
 
   happy_1_18_4 = callPackage ../development/tools/parsing/happy/1.18.4.nix {};
   happy_1_18_5 = callPackage ../development/tools/parsing/happy/1.18.5.nix {};