diff --git a/back/models/notification.json b/back/models/notification.json
index 07702d99d..56f66bf1d 100644
--- a/back/models/notification.json
+++ b/back/models/notification.json
@@ -18,9 +18,6 @@
         },
         "description": {
             "type": "string"
-        },
-        "delay": {
-            "type": "number"
         }
     },
     "relations": {