2 files changed, 2 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
index af52a17..45c42e4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,6 +21,7 @@ erl_crash.dump
 
 # Ignore package tarball (built via "mix hex.build").
 elixir_math_parser-*.tar
+elixir_math_parser
 
 src/elixir_math_parser*.erl
 
diff --git a/mix.exs b/mix.exs
index 3b7e2dd..4a46edb 100644
--- a/mix.exs
+++ b/mix.exs
@@ -9,6 +9,7 @@ defmodule ElixirMathParser.MixProject do
       start_permanent: Mix.env() == :prod,
       deps: deps(),
       escript: [main_module: ElixirMathParser.Main],
+      compilers: [:yecc, :leex] ++ Mix.compilers()
     ]
   end