diff --git a/rel/files/app.config b/rel/files/app.config
index 1a3b1ca69..e64fda7cf 100644
--- a/rel/files/app.config
+++ b/rel/files/app.config
@@ -34,7 +34,7 @@
  {emqtt, [
     {auth, {anonymous, []}}, %internal, anonymous
     {session, [ 
-        {expires, 24}, 
+        {expires, 1}, 
         {max_queue, 1000}, 
         {qos0, false}
     ]},