diff --git a/apps/iot/src/iot_sup.erl b/apps/iot/src/iot_sup.erl
index 93b395e..24c260a 100644
--- a/apps/iot/src/iot_sup.erl
+++ b/apps/iot/src/iot_sup.erl
@@ -35,7 +35,7 @@ init([]) ->
             shutdown => 2000,
             type => worker,
             modules => ['iot_logger']
-        }
+        },
 
         #{
             id => 'iot_endpoint_sup',