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-rw-r--r--pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix2
1 files changed, 2 insertions, 0 deletions
diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
index 402eccac639c..588f76eca067 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
@@ -45,8 +45,10 @@ self: super: {
   hoopl = self.hoopl_3_10_2_2;
 
   # LTS-12.x versions do not compile.
+  base-orphans = self.base-orphans_0_8;
   contravariant = self.contravariant_1_5;
   control-monad-free = markBrokenVersion "0.6.1" super.control-monad-free;
+  free = self.free_5_1;
   Glob = self.Glob_0_9_3;
   haddock-library = markBroken super.haddock-library;
   hslogger = self.hslogger_1_2_12;