diff --git a/constant.go b/constant.go
index eb2f498..a63b4a8 100644
--- a/constant.go
+++ b/constant.go
@@ -12,6 +12,7 @@ var AllStreams = struct {
 	Product    string
 	Supplier   string
 	Warehouse  string
+	Campaign   string
 }{
 	Selly:      "selly",
 	User:       "user",
@@ -24,6 +25,7 @@ var AllStreams = struct {
 	Product:    "product",
 	Supplier:   "supplier",
 	Warehouse:  "warehouse",
+	Campaign:   "campaign",
 }
 
 var AllServers = struct {