diff --git a/pkgs/development/libraries/haskell/yi-monokai/default.nix b/pkgs/development/libraries/haskell/yi-monokai/default.nix
new file mode 100644
index 000000000000..ddae06b7f22b
--- /dev/null
+++ b/pkgs/development/libraries/haskell/yi-monokai/default.nix
@@ -0,0 +1,17 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+
+{ cabal, yi }:
+
+cabal.mkDerivation (self: {
+  pname = "yi-monokai";
+  version = "0.1.1.2";
+  sha256 = "1nghfyiy8jdz144nbw0c2cdy8n6xyjmk31g6z24jk8dij7iwb60l";
+  buildDepends = [ yi ];
+  meta = {
+    homepage = "https://github.com/Fuuzetsu/yi-monokai";
+    description = "Monokai colour theme for the Yi text editor";
+    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 3b64b94b9522..34c5359a82ef 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -3124,6 +3124,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   yiFuzzyOpen = callPackage ../development/libraries/haskell/yi-fuzzy-open {};
 
+  yiMonokai = callPackage ../development/libraries/haskell/yi-monokai {};
+
   yiLanguage = callPackage ../development/libraries/haskell/yi-language {};
 
   yiRope = callPackage ../development/libraries/haskell/yi-rope {};