diff --git a/apps/emqtt/src/emqtt_cm.erl b/apps/emqtt/src/emqtt_cm.erl
new file mode 100644
index 000000000..fc9bc3cf8
--- /dev/null
+++ b/apps/emqtt/src/emqtt_cm.erl
@@ -0,0 +1,3 @@
+-module(emqtt_cm).
+
+%%client manager...