diff --git a/pkgs/development/libraries/haskell/bytestring-show/default.nix b/pkgs/development/libraries/haskell/bytestring-show/default.nix
new file mode 100644
index 00000000000..b71b2a3ad83
--- /dev/null
+++ b/pkgs/development/libraries/haskell/bytestring-show/default.nix
@@ -0,0 +1,14 @@
+{ cabal, binary }:
+
+cabal.mkDerivation (self: {
+  pname = "bytestring-show";
+  version = "0.3.5.5";
+  sha256 = "0vd8f3jrzi2s119rcn20k6srk6l7ypiars1mxw1n1jrjx8ill2y4";
+  buildDepends = [ binary ];
+  meta = {
+    homepage = "http://code.haskell.org/~dolio/";
+    description = "Efficient conversion of values into readable byte strings";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/development/libraries/haskell/hoauth2/default.nix b/pkgs/development/libraries/haskell/hoauth2/default.nix
new file mode 100644
index 00000000000..77e84842723
--- /dev/null
+++ b/pkgs/development/libraries/haskell/hoauth2/default.nix
@@ -0,0 +1,19 @@
+{ cabal, aeson, bytestringShow, conduit, httpConduit, httpTypes
+, monadControl, mtl, random, resourcet, text, transformers
+}:
+
+cabal.mkDerivation (self: {
+  pname = "hoauth2";
+  version = "0.3.6.1";
+  sha256 = "0nfh77fxyl8vbdnrrp28hsl1zhxhmg8mjn0gfvc2i3w5rd6j0lda";
+  buildDepends = [
+    aeson bytestringShow conduit httpConduit httpTypes monadControl mtl
+    random resourcet text transformers
+  ];
+  meta = {
+    homepage = "https://github.com/freizl/hoauth2";
+    description = "hoauth2";
+    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 bbf7658a842..1cac51fe612 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -699,6 +699,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   bytestringMmap = callPackage ../development/libraries/haskell/bytestring-mmap {};
 
+  bytestringShow = callPackage ../development/libraries/haskell/bytestring-show {};
+
   bytestringTrie = callPackage ../development/libraries/haskell/bytestring-trie {};
 
   bytestringProgress = callPackage ../development/libraries/haskell/bytestring-progress {};
@@ -1391,6 +1393,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   hoauth = callPackage ../development/libraries/haskell/hoauth {};
 
+  hoauth2 = callPackage ../development/libraries/haskell/hoauth2 {};
+
   hoodle = callPackage ../applications/graphics/hoodle {};
 
   hoodleBuilder = callPackage ../development/libraries/haskell/hoodle-builder {};