1 files changed, 11 insertions, 0 deletions
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 56d5aada81b6..f9cd2eb94337 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -67,6 +67,12 @@ in rec {
       buildLlvmPackages = buildPackages.llvmPackages_5;
       llvmPackages = pkgs.llvmPackages_5;
     };
+    ghc842 = callPackage ../development/compilers/ghc/8.4.2.nix rec {
+      bootPkgs = packages.ghc821Binary;
+      inherit (bootPkgs) alex happy;
+      buildLlvmPackages = buildPackages.llvmPackages_5;
+      llvmPackages = pkgs.llvmPackages_5;
+    };
     ghcHEAD = callPackage ../development/compilers/ghc/head.nix rec {
       bootPkgs = packages.ghc821Binary;
       inherit (bootPkgs) alex happy;
@@ -128,6 +134,11 @@ in rec {
       ghc = bh.compiler.ghc841;
       compilerConfig = callPackage ../development/haskell-modules/configuration-ghc-8.4.x.nix { };
     };
+    ghc842 = callPackage ../development/haskell-modules {
+      buildHaskellPackages = bh.packages.ghc842;
+      ghc = bh.compiler.ghc842;
+      compilerConfig = callPackage ../development/haskell-modules/configuration-ghc-8.4.x.nix { };
+    };
     ghcHEAD = callPackage ../development/haskell-modules {
       buildHaskellPackages = bh.packages.ghcHEAD;
       ghc = bh.compiler.ghcHEAD;