diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
index ae51b82d3942..488ca838b9b7 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
@@ -900,4 +900,7 @@ self: super: {
     ## error: build of ‘/nix/store/iy6ccxh4dvp6plalx4ww81qrnhxm7jgr-wavefront-0.7.1.1.drv’ failed
     jailbreak       = true;
   });
+
+  # Needed for (<>) in prelude
+  funcmp = super.funcmp_1_9;
 }