diff --git a/rel/reltool.config b/rel/reltool.config
index fd226f03a..9c19a7a65 100644
--- a/rel/reltool.config
+++ b/rel/reltool.config
@@ -47,6 +47,7 @@
        {app, lager, [{mod_cond, app}, {incl_cond, include}]},
        {app, esockd, [{mod_cond, app}, {incl_cond, include}]},
        {app, mochiweb, [{mod_cond, app}, {incl_cond, include}]},
+       {app, emqtt, [{mod_cond, app}, {incl_cond, include}]}
        {app, emqttd, [{mod_cond, app}, {incl_cond, include}]}
       ]}.