diff --git a/type.go b/type.go
index 5f6fdff2..e55c61f0 100644
--- a/type.go
+++ b/type.go
@@ -49,7 +49,8 @@ type ContainerIDType string
 
 // ContainerIDTypeChat ...
 const (
-	ContainerIDTypeChat ContainerIDType = "chat"
+	ContainerIDTypeChat   ContainerIDType = "chat"
+	ContainerIDTypeThread ContainerIDType = "thread"
 )
 
 // ContainerIDTypePtr ...