diff --git a/doc/model.md b/doc/model.md
index e60a2fa8886b16c5a5aa30b3961f359c22453eca..c6d12bf5dc3f05c82a92e96f23f3f12db7db43ec 100644
--- a/doc/model.md
+++ b/doc/model.md
@@ -29,8 +29,8 @@ These `Operation`s are aggregated in an `OperationPack`, a simple array. An `Ope
     "author": {
       "id": "5034cd36acf1a2dadb52b2db17f620cc050eb65c"
     },
-    "timestamp": 1533640589,
-    "title": "This title is better"
+    "timestamp": 1533640612,
+    "message": "A new comment"
   }
 ]
 ```