diff --git a/default.nix b/default.nix
index 6ad73da8e..2e89507b6 100644
--- a/default.nix
+++ b/default.nix
@@ -414,6 +414,7 @@ let overrideCabal = pkg: f: if pkg == null then null else haskellLib.overrideCab
   ghcIosSimulator64 = (extendHaskellPackages nixpkgsCross.ios.simulator64.pkgs.haskell.packages.ghc842).override {
     overrides = nixpkgs.lib.foldr nixpkgs.lib.composeExtensions (_: _: {}) [
       (optionalExtension enableExposeAllUnfoldings haskellOverlays.exposeAllUnfoldings)
+      haskellOverlays.disableTemplateHaskell
       haskellOverlays.ghc-8_4_2
     ];
   };
diff --git a/haskell-overlays/disable-template-haskell.nix b/haskell-overlays/disable-template-haskell.nix
index b6c0468ff..ff151f809 100644
--- a/haskell-overlays/disable-template-haskell.nix
+++ b/haskell-overlays/disable-template-haskell.nix
@@ -14,7 +14,7 @@ in self: super: {
     # Export all modules, and some additional functions
     preConfigure = ''
       sed -i '/^library/,/^test-suite/ s/other-modules:/exposed-modules:/' *.cabal
-      sed -i "/^module Data.Aeson.TH/,/) where/ { /^module/b; /) where/ { s/) where/, LookupField (..), parseTypeMismatch, parseTypeMismatch', valueConName, keyValuePairWith) where/; b }; }" Data/Aeson/TH.hs
+      sed -i "/^module Data.Aeson.TH/,/) where/ { /^module/b; /) where/ { s/) where/, LookupField (..), parseTypeMismatch, parseTypeMismatch', valueConName) where/; b }; }" Data/Aeson/TH.hs
       ${drv.preConfigure or ""}
     '';
   });