diff --git a/pkgs/development/libraries/haskell/sized/default.nix b/pkgs/development/libraries/haskell/sized/default.nix
new file mode 100644
index 00000000000..ae75ff26e4c
--- /dev/null
+++ b/pkgs/development/libraries/haskell/sized/default.nix
@@ -0,0 +1,18 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+
+{ cabal, constraints, ListLike, monomorphic, typeNatural, vector }:
+
+cabal.mkDerivation (self: {
+  pname = "sized";
+  version = "0.1.0.0";
+  sha256 = "00n9fb7kk3c6dy4j19d9ikmynllpxc7yd51sign0rhvnasmyrghl";
+  buildDepends = [
+    constraints ListLike monomorphic typeNatural vector
+  ];
+  meta = {
+    description = "Sized sequence data-types";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+    maintainers = with self.stdenv.lib.maintainers; [ fuuzetsu ];
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index d8ae2e9d394..fbff5087cc0 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -2175,6 +2175,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   silently = callPackage ../development/libraries/haskell/silently {};
 
+  sized = callPackage ../development/libraries/haskell/sized {};
+
   sizedTypes = callPackage ../development/libraries/haskell/sized-types {};
 
   skein = callPackage ../development/libraries/haskell/skein {};