diff --git a/src/emqttd_auth_mod.erl b/src/emqttd_auth_mod.erl
index 8ec5d16cd..a6298a68b 100644
--- a/src/emqttd_auth_mod.erl
+++ b/src/emqttd_auth_mod.erl
@@ -50,7 +50,7 @@
 -export([behaviour_info/1]).
 
 behaviour_info(callbacks) ->
-        [{check, 3}, {description, 0}];
+        [{init, 1}, {check, 3}, {description, 0}];
 behaviour_info(_Other) ->
         undefined.