diff --git a/pkgs/development/libraries/haskell/pandoc/default.nix b/pkgs/development/libraries/haskell/pandoc/default.nix
index f6a1966ddd0..3788c1f3bf8 100644
--- a/pkgs/development/libraries/haskell/pandoc/default.nix
+++ b/pkgs/development/libraries/haskell/pandoc/default.nix
@@ -9,19 +9,13 @@
 , tagsoup, temporary, testFramework, testFrameworkHunit
 , testFrameworkQuickcheck2, texmath, text, time
 , unorderedContainers, vector, xml, yaml, zipArchive, zlib
-, fetchurl
 }:
 
-let
-  editedCabalFile = fetchurl {
-    url = "hackage.haskell.org/package/pandoc-1.13.1/pandoc.cabal";
-    sha256 = "1i57yk1pql4gv97cs86fk82hkwncics1wkzjqd9iz866204y4wrg";
-  };
-in
 cabal.mkDerivation (self: {
   pname = "pandoc";
   version = "1.13.1";
   sha256 = "0vvysa70xp4pskxrvslmddwdsalc479zb8wn6z1vmpvfssvvj6vv";
+  editedCabalFile = "1i57yk1pql4gv97cs86fk82hkwncics1wkzjqd9iz866204y4wrg";
   isLibrary = true;
   isExecutable = true;
   buildDepends = [
@@ -38,7 +32,6 @@ cabal.mkDerivation (self: {
     pandocTypes QuickCheck syb testFramework testFrameworkHunit
     testFrameworkQuickcheck2 text zipArchive
   ];
-  preConfigure = "cp ${editedCabalFile} pandoc.cabal";
   configureFlags = "-fhttps -fmake-pandoc-man-pages";
   jailbreak = true;
   doCheck = false;