diff --git a/pkgs/development/libraries/haskell/idna/default.nix b/pkgs/development/libraries/haskell/idna/default.nix
new file mode 100644
index 000000000000..1d5bc92bf6f1
--- /dev/null
+++ b/pkgs/development/libraries/haskell/idna/default.nix
@@ -0,0 +1,13 @@
+{ cabal, punycode, stringprep, text }:
+
+cabal.mkDerivation (self: {
+  pname = "idna";
+  version = "0.2";
+  sha256 = "0gl1mn2fjyxdpzl024imspf7hk4xvj9r8mvisqnlkdsng8i5jnyz";
+  buildDepends = [ punycode stringprep text ];
+  meta = {
+    description = "Implements IDNA (RFC 3490)";
+    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 df71e01d0f2f..62036e55e80b 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1112,6 +1112,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   hxtUnicode = callPackage ../development/libraries/haskell/hxt-unicode {};
 
+  idna = callPackage ../development/libraries/haskell/idna {};
+
   IfElse = callPackage ../development/libraries/haskell/IfElse {};
 
   ieee754 = callPackage ../development/libraries/haskell/ieee754 {};