diff --git a/internal/guestbook/reply.go b/internal/guestbook/reply.go
index ebef0cd..eab9633 100644
--- a/internal/guestbook/reply.go
+++ b/internal/guestbook/reply.go
@@ -6,7 +6,7 @@ import (
 )
 
 type Reply struct {
-	ID      int64  `json:"-"`
+	ID      int64  `json:"id,omitempty"`
 	Created string `json:"created,omitempty"`
 	Message string `json:"message"`
 }