diff --git a/http/upgrade/request/types.go b/http/upgrade/request/types.go
index 783e7e4..b43d6d1 100644
--- a/http/upgrade/request/types.go
+++ b/http/upgrade/request/types.go
@@ -9,7 +9,7 @@ type T struct {
 	// request line
 	request     reqline.T
 
-	// http data
+	// data to check origin (depends of reading order)
 	host        string
 	port        uint16 // 0 if not set
 	origin      string