diff --git a/messages/event.go b/messages/event.go
index 175838d..aeb8289 100644
--- a/messages/event.go
+++ b/messages/event.go
@@ -1,7 +1,12 @@
 package messages
 
 type Event struct {
-	Type string
+	Type int
 	Id   string
 	Data []byte
 }
+
+const (
+	EVT_TYPE_TASK = 1
+	EVT_TYPE_NONE = 2
+)