diff --git a/rebar.config b/rebar.config
index 0bb68a3..3c8cfa8 100644
--- a/rebar.config
+++ b/rebar.config
@@ -1,5 +1,6 @@
 {deps_dir,"deps"}.
 {erl_first_files, ["emqttd_acl_mod.erl","gen_server2.erl"]}.
+{erl_opts,[nowarn_deprecated_function]}.
 {deps, [
     {gproc,".*",{git,"git://github.com/voxoz/gproc",[]}},
     {kvs,".*",{git,"git://github.com/synrc/kvs",[]}},