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 8a443114913..baee4ae1fb9 100644 --- a/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix +++ b/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix @@ -131,5 +131,9 @@ self: super: { url = "https://raw.githubusercontent.com/hvr/head.hackage/master/patches/hackage-security-0.5.3.0.patch"; sha256 = "0l8x0pbsn18fj5ak5q0g5rva4xw1s9yc4d86a1pfyaz467b9i5a4"; }); + happy = appendPatch super.happy (pkgs.fetchpatch { + url = "https://raw.githubusercontent.com/hvr/head.hackage/master/patches/happy-1.19.9.patch"; + sha256 = "1zmcb7dgcwivq2mddcy1f20djw2kds1m7ahwsa4xpbbwnijc6zjx"; + }); }