diff --git a/pkgs/development/haskell-modules/configuration-nix.nix b/pkgs/development/haskell-modules/configuration-nix.nix
index 29483b56a7db..88ec8ad85ff0 100644
--- a/pkgs/development/haskell-modules/configuration-nix.nix
+++ b/pkgs/development/haskell-modules/configuration-nix.nix
@@ -94,7 +94,12 @@ self: super: builtins.intersectAttrs super {
   # Won't find it's header files without help.
   sfml-audio = appendConfigureFlag super.sfml-audio "--extra-include-dirs=${pkgs.openal}/include/AL";
 
-  cachix = enableSeparateBinOutput super.cachix;
+  cachix = overrideCabal (addBuildTools (enableSeparateBinOutput super.cachix) [pkgs.boost]) (drv: {
+    postPatch = (drv.postPatch or "") + ''
+      substituteInPlace cachix.cabal --replace "c++14" "c++17"
+    '';
+  });
+
   ghcid = enableSeparateBinOutput super.ghcid;
 
   hzk = overrideCabal super.hzk (drv: {