diff --git a/pkgs/development/libraries/haskell/language-c/0.3.2.1.nix b/pkgs/development/libraries/haskell/language-c/0.3.2.1.nix
deleted file mode 100644
index 154bc68c3c5c..000000000000
--- a/pkgs/development/libraries/haskell/language-c/0.3.2.1.nix
+++ /dev/null
@@ -1,16 +0,0 @@
-{ cabal, alex, filepath, happy, syb }:
-
-cabal.mkDerivation (self: {
-  pname = "language-c";
-  version = "0.3.2.1";
-  sha256 = "1qk86p88p2jk1cbgl8p5g19ip3nh6z22ddj5jac58r5ny076iimx";
-  buildDepends = [ filepath syb ];
-  buildTools = [ alex happy ];
-  meta = {
-    homepage = "http://www.sivity.net/projects/language.c/";
-    description = "Analysis and generation of C code";
-    license = self.stdenv.lib.licenses.bsd3;
-    platforms = self.ghc.meta.platforms;
-    maintainers = [ self.stdenv.lib.maintainers.andres ];
-  };
-})
diff --git a/pkgs/development/libraries/haskell/language-c/0.4.2.nix b/pkgs/development/libraries/haskell/language-c/default.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/language-c/0.4.2.nix
rename to pkgs/development/libraries/haskell/language-c/default.nix
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index be9d8f415fc0..79045f14831f 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -647,9 +647,7 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   bytestringProgress = callPackage ../development/libraries/haskell/bytestring-progress {};
 
-  c2hs = callPackage ../development/libraries/haskell/c2hs {
-    languageC = self.languageC_0_3_2_1;
-  };
+  c2hs = callPackage ../development/libraries/haskell/c2hs {};
 
   Cabal_1_14_0 = callPackage ../development/libraries/haskell/Cabal/1.14.0.nix { cabal = self.cabal.override { Cabal = null; }; };
   Cabal_1_16_0_3 = callPackage ../development/libraries/haskell/Cabal/1.16.0.3.nix { cabal = self.cabal.override { Cabal = null; }; };
@@ -1314,9 +1312,7 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   knob = callPackage ../development/libraries/haskell/knob {};
 
-  languageC_0_4_2   = callPackage ../development/libraries/haskell/language-c/0.4.2.nix {};
-  languageC_0_3_2_1 = callPackage ../development/libraries/haskell/language-c/0.3.2.1.nix {};
-  languageC = self.languageC_0_4_2;
+  languageC = callPackage ../development/libraries/haskell/language-c {};
 
   languageCQuote = callPackage ../development/libraries/haskell/language-c-quote {};