diff --git a/lib/erl/rebar.config b/lib/erl/rebar.config
index 0f5d40e..1ea18a4 100644
--- a/lib/erl/rebar.config
+++ b/lib/erl/rebar.config
@@ -1 +1 @@
-{erl_opts, [debug_info]}.
+{erl_opts, [{platform_define, "^R.*", otp16_or_less}, debug_info]}.