diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
index 36062652b1fa..54e3a475a3c3 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
@@ -237,6 +237,10 @@ self: super: {
   unix-time = dontCheck super.unix-time;
 
   # Until the changes have been pushed to Hackage
+  arithmoi = appendPatch super.arithmoi (pkgs.fetchpatch {
+    url = "https://github.com/cartazio/arithmoi/pull/3.patch";
+    sha256 = "1rqs796sh81inqkg2vadskcjpp6q92j6k8zpn370990wndndzzmq";
+  });
   mono-traversable = appendPatch super.mono-traversable (pkgs.fetchpatch {
     url = "https://github.com/snoyberg/mono-traversable/pull/68.patch";
     sha256 = "11hqf6hi3sc34wl0fn4rpigdf7wfklcjv6jwp8c3129yphg8687h";