diff --git a/mix.exs b/mix.exs
index 677f7a6..627095e 100644
--- a/mix.exs
+++ b/mix.exs
@@ -13,6 +13,7 @@ defmodule Hunter.Mixfile do
       build_embedded: Mix.env() == :prod,
       start_permanent: Mix.env() == :prod,
       elixirc_paths: ["lib"],
+      elixirc_options: [warnings_as_errors: true],
       deps: deps(),
       dialyzer: [
         plt_add_apps: [:mix, :ex_unit],