diff --git a/pkgs/development/tools/haskell/cabal2nix/default.nix b/pkgs/development/tools/haskell/cabal2nix/default.nix
index b56dc6bdd892..4a234cbc1e8f 100644
--- a/pkgs/development/tools/haskell/cabal2nix/default.nix
+++ b/pkgs/development/tools/haskell/cabal2nix/default.nix
@@ -8,11 +8,11 @@
 
 mkDerivation rec {
   pname = "cabal2nix";
-  version = "20150807";
+  version = "20150807-6-g9f58996";
   src = fetchgit {
     url = "http://github.com/NixOS/cabal2nix.git";
-    rev = "796dabfc3fb0a98174b680c5d722954096465103";
-    sha256 = "1blyjq80w9534ap4cg0m6awks0zj2135kxld1i9d2z88x1ijzx9v";
+    rev = "9f589961fba9fa6a92900c37cf1ab16c597b0c69";
+    sha256 = "1w5ba7cdanpq4nr8xngk1jsj0p6b17c6ap24ldzggrln216f3f7d";
     deepClone = true;
   };
   isLibrary = true;