From 8a0c213261a00a38ae7c902e4acc689200ab1775 Mon Sep 17 00:00:00 2001
From: Luc Tielen <luc.tielen@kabisa.nl>
Date: Sun, 15 Sep 2019 18:51:59 +0200
Subject: [PATCH] haskell.packages.ghc881.yaml: fix missing attribute issue

---
 pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
index 6fa02c39c43..1ea3be21ba9 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
@@ -167,7 +167,7 @@ self: super: {
     '';
   });
   system-fileio = doJailbreak super.system-fileio;
-  yaml = self.yaml_0_11_1_2;
+  yaml = super.yaml;
   haskell-src-meta = appendPatch (dontCheck (doJailbreak super.haskell-src-meta)) (pkgs.fetchpatch {
     url = "https://gitlab.haskell.org/ghc/head.hackage/raw/master/patches/haskell-src-meta-0.8.2.patch";
     sha256 = "146im1amywyl29kcldvgrxpwj22lrpzxysl7vc8rmn3hrq130dyc";