diff --git a/pkgs/development/haskell-modules/configuration-darwin.nix b/pkgs/development/haskell-modules/configuration-darwin.nix
index d14da77d86585..9ecc35c9aac7c 100644
--- a/pkgs/development/haskell-modules/configuration-darwin.nix
+++ b/pkgs/development/haskell-modules/configuration-darwin.nix
@@ -377,4 +377,12 @@ self: super: ({
   # same
   # https://hydra.nixos.org/build/174540882/nixlog/9
   jacinda = dontCheck super.jacinda;
+
+  # Greater floating point error on x86_64-darwin (!) for some reason
+  # https://github.com/ekmett/ad/issues/113
+  ad = overrideCabal (drv: {
+    testFlags = drv.testFlags or [ ] ++ [
+      "-p" "!/issue-108/"
+    ];
+  }) super.ad;
 })