diff --git a/pkgs/development/libraries/haskell/convertible/1.0.11.1.nix b/pkgs/development/libraries/haskell/convertible/1.0.11.1.nix
deleted file mode 100644
index 57423c1b71f..00000000000
--- a/pkgs/development/libraries/haskell/convertible/1.0.11.1.nix
+++ /dev/null
@@ -1,19 +0,0 @@
-# This file was auto-generated by cabal2nix. Please do NOT edit manually!
-
-{ cabal, mtl, text, time }:
-
-cabal.mkDerivation (self: {
-  pname = "convertible";
-  version = "1.0.11.1";
-  sha256 = "1r50a2rpfsx0s7dv8ww5xck33b1mhy73gfilffrbqd4hxjgnxlj6";
-  isLibrary = true;
-  isExecutable = true;
-  buildDepends = [ mtl text time ];
-  meta = {
-    homepage = "http://hackage.haskell.org/cgi-bin/hackage-scripts/package/convertible";
-    description = "Typeclasses and instances for converting between types";
-    license = self.stdenv.lib.licenses.bsd3;
-    platforms = self.ghc.meta.platforms;
-    hydraPlatforms = self.stdenv.lib.platforms.none;
-  };
-})
diff --git a/pkgs/development/libraries/haskell/convertible/1.1.0.0.nix b/pkgs/development/libraries/haskell/convertible/default.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/convertible/1.1.0.0.nix
rename to pkgs/development/libraries/haskell/convertible/default.nix
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index c08b4b681d8..1be451ce09b 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -499,9 +499,7 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   controlMonadLoop = callPackage ../development/libraries/haskell/control-monad-loop {};
 
-  convertible_1_0_11_1 = callPackage ../development/libraries/haskell/convertible/1.0.11.1.nix {};
-  convertible_1_1_0_0 = callPackage ../development/libraries/haskell/convertible/1.1.0.0.nix {};
-  convertible = self.convertible_1_1_0_0;
+  convertible = callPackage ../development/libraries/haskell/convertible {};
 
   continuedFractions = callPackage ../development/libraries/haskell/continued-fractions {};