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 9f4cc057c707..8b3800964663 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
@@ -46,6 +46,7 @@ self: super: {
 
   # LTS-12.x versions do not compile.
   contravariant = self.contravariant_1_5;
+  control-monad-free = markBrokenVersion "0.6.1" super.control-monad-free;
   doctest = self.doctest_0_16_0_1;
   doctest_0_16_0_1 = dontCheck super.doctest_0_16_0_1;
   Glob = self.Glob_0_9_3;