diff --git a/rebar.config b/rebar.config
index dc19dfa..99995eb 100644
--- a/rebar.config
+++ b/rebar.config
@@ -1,2 +1,3 @@
 {app_bin, ["priv/rebar"]}.
-{erl_opts, [fail_on_warning]}.
+{erl_opts, [fail_on_warning, debug_info]}.
+{xref_checks, [undefined_function_calls]}.