diff --git a/pkgs/development/libraries/haskell/cmdargs/default.nix b/pkgs/development/libraries/haskell/cmdargs/0.8.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/cmdargs/default.nix
rename to pkgs/development/libraries/haskell/cmdargs/0.8.nix
diff --git a/pkgs/development/libraries/haskell/cmdargs/0.9.2.nix b/pkgs/development/libraries/haskell/cmdargs/0.9.2.nix
new file mode 100644
index 00000000000..7024b08a672
--- /dev/null
+++ b/pkgs/development/libraries/haskell/cmdargs/0.9.2.nix
@@ -0,0 +1,20 @@
+{ cabal, transformers }:
+
+cabal.mkDerivation (self: {
+  pname = "cmdargs";
+  version = "0.9.2";
+  sha256 = "1c0xy4g9b5jqy51qhgq7djafqz27z6q7ya31pgy186pfgl7604kr";
+  isLibrary = true;
+  isExecutable = true;
+  buildDepends = [ transformers ];
+  meta = {
+    homepage = "http://community.haskell.org/~ndm/cmdargs/";
+    description = "Command line argument processing";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+    maintainers = [
+      self.stdenv.lib.maintainers.andres
+      self.stdenv.lib.maintainers.simons
+    ];
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 3885912106e..1898229ec8a 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -531,7 +531,9 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   clientsession = callPackage ../development/libraries/haskell/clientsession {};
 
-  cmdargs = callPackage ../development/libraries/haskell/cmdargs {};
+  cmdargs_0_8 = callPackage ../development/libraries/haskell/cmdargs/0.8.nix {};
+  cmdargs_0_9_2 = callPackage ../development/libraries/haskell/cmdargs/0.9.2.nix {};
+  cmdargs = self.cmdargs_0_9_2;
 
   cmdlib = callPackage ../development/libraries/haskell/cmdlib {};
 
@@ -830,7 +832,9 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
   hjsmin = callPackage ../development/libraries/haskell/hjsmin {};
 
   hledger = callPackage ../development/libraries/haskell/hledger {};
-  hledgerLib = callPackage ../development/libraries/haskell/hledger-lib {};
+  hledgerLib = callPackage ../development/libraries/haskell/hledger-lib {
+    cmdargs = self.cmdargs_0_8;
+  };
   hledgerVty = callPackage ../development/libraries/haskell/hledger-vty {};
   hledgerChart = callPackage ../development/libraries/haskell/hledger-chart {};
   hledgerInterest = callPackage ../applications/office/hledger-interest {};