diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.8.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.8.x.nix
index 13ce111c8f8..f63d31c9efd 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.8.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.8.x.nix
@@ -152,4 +152,7 @@ self: super: {
   # Haddock doesn't cope with the new markup.
   bifunctors = dontHaddock super.bifunctors;
 
+  # extra-test: <stdout>: hFlush: invalid argument (Bad file descriptor)
+  extra = dontCheck super.extra;
+
 }