diff --git a/pkgs/development/libraries/haskell/iCalendar/default.nix b/pkgs/development/libraries/haskell/iCalendar/default.nix
new file mode 100644
index 00000000000..7244e15c293
--- /dev/null
+++ b/pkgs/development/libraries/haskell/iCalendar/default.nix
@@ -0,0 +1,20 @@
+{ cabal, base64Bytestring, caseInsensitive, dataDefault, mime, mtl
+, network, parsec, text, time
+}:
+
+cabal.mkDerivation (self: {
+  pname = "iCalendar";
+  version = "0.3.0.1";
+  sha256 = "0d51rb46vcpb05vsqqmk3w7rymybl3vz8cqs0pw088a52kiy4xc3";
+  buildDepends = [
+    base64Bytestring caseInsensitive dataDefault mime mtl network
+    parsec text time
+  ];
+  meta = {
+    homepage = "http://github.com/tingtun/iCalendar";
+    description = "iCalendar data types, parser, and printer";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+    maintainers = [ self.stdenv.lib.maintainers.ocharles ];
+  };
+})
diff --git a/pkgs/development/libraries/haskell/mime/default.nix b/pkgs/development/libraries/haskell/mime/default.nix
new file mode 100644
index 00000000000..37c231d08ff
--- /dev/null
+++ b/pkgs/development/libraries/haskell/mime/default.nix
@@ -0,0 +1,14 @@
+{ cabal }:
+
+cabal.mkDerivation (self: {
+  pname = "mime";
+  version = "0.3.4";
+  sha256 = "1klvy32idy6v029p5a6g93r79ac5cycnrx5c8z9bgvplbplpfjwy";
+  meta = {
+    homepage = "https://github.com/GaloisInc/mime";
+    description = "Working with MIME types";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+    maintainers = [ self.stdenv.lib.maintainers.ocharles ];
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index ff06573af55..11805d9a00f 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1434,6 +1434,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   hxtUnicode = callPackage ../development/libraries/haskell/hxt-unicode {};
 
+  iCalendar = callPackage ../development/libraries/haskell/iCalendar {};
+
   idna = callPackage ../development/libraries/haskell/idna {};
 
   IfElse = callPackage ../development/libraries/haskell/IfElse {};
@@ -1586,6 +1588,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   midi = callPackage ../development/libraries/haskell/midi {};
 
+  mime = callPackage ../development/libraries/haskell/mime {};
+
   minimorph = callPackage ../development/libraries/haskell/minimorph {};
 
   miniutter = callPackage ../development/libraries/haskell/miniutter {