diff --git a/mix.exs b/mix.exs
index 0c303ee37e..bf71991e5b 100644
--- a/mix.exs
+++ b/mix.exs
@@ -28,6 +28,7 @@ defmodule Absinthe.Mixfile do
         extras: extras(),
         groups_for_extras: groups_for_extras()
       ],
+      compilers: [:yecc] ++ Mix.compilers(),
       deps: deps(),
       dialyzer: [
         plt_add_deps: :apps_direct,