diff --git a/src/easy/entities/pushsubscription.cpp b/src/easy/entities/pushsubscription.cpp
index 76cf58d..bf92f94 100644
--- a/src/easy/entities/pushsubscription.cpp
+++ b/src/easy/entities/pushsubscription.cpp
@@ -30,7 +30,8 @@ bool PushSubscription::valid() const
         {
             "id",
             "endpoint",
-            "server_key"
+            "server_key",
+            "alerts"
         });
 }