diff --git a/pkgs/development/libraries/haskell/classy-prelude-conduit/default.nix b/pkgs/development/libraries/haskell/classy-prelude-conduit/default.nix
new file mode 100644
index 00000000000..861e58ae7b9
--- /dev/null
+++ b/pkgs/development/libraries/haskell/classy-prelude-conduit/default.nix
@@ -0,0 +1,14 @@
+{ cabal, classyPrelude, conduit, xmlConduit }:
+
+cabal.mkDerivation (self: {
+  pname = "classy-prelude-conduit";
+  version = "0.4.0";
+  sha256 = "1abx3nrnd39l0319qwj11gsfq3ji9babrs6h60s8fp2cfkvqzalz";
+  buildDepends = [ classyPrelude conduit xmlConduit ];
+  meta = {
+    homepage = "https://github.com/snoyberg/classy-prelude";
+    description = "conduit instances for classy-prelude";
+    license = self.stdenv.lib.licenses.mit;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/development/libraries/haskell/classy-prelude/default.nix b/pkgs/development/libraries/haskell/classy-prelude/default.nix
new file mode 100644
index 00000000000..b332b1f8d7b
--- /dev/null
+++ b/pkgs/development/libraries/haskell/classy-prelude/default.nix
@@ -0,0 +1,19 @@
+{ cabal, basicPrelude, hashable, systemFilepath, text, transformers
+, unorderedContainers, vector
+}:
+
+cabal.mkDerivation (self: {
+  pname = "classy-prelude";
+  version = "0.4.0";
+  sha256 = "0j84mv87g4hkpqdvh9cb7k4jzy1z4m8m4l1kz8j9z7sngaymhq9k";
+  buildDepends = [
+    basicPrelude hashable systemFilepath text transformers
+    unorderedContainers vector
+  ];
+  meta = {
+    homepage = "https://github.com/snoyberg/classy-prelude";
+    description = "A typeclass-based Prelude";
+    license = self.stdenv.lib.licenses.mit;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 29abdbcb6e0..acda1e8dac0 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -579,6 +579,10 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   cipherAes = callPackage ../development/libraries/haskell/cipher-aes {};
 
+  classyPrelude = callPackage ../development/libraries/haskell/classy-prelude {};
+
+  classyPreludeConduit = callPackage ../development/libraries/haskell/classy-prelude-conduit {};
+
   clientsession = callPackage ../development/libraries/haskell/clientsession {};
 
   cmdargs = callPackage ../development/libraries/haskell/cmdargs {};