diff --git a/neo/SmartContract/InteropService.cs b/neo/SmartContract/InteropService.cs
index 8651dfbc3d..6868da1886 100644
--- a/neo/SmartContract/InteropService.cs
+++ b/neo/SmartContract/InteropService.cs
@@ -238,13 +238,13 @@ private static bool Runtime_GetNotifications(ApplicationEngine engine)
         {
             var data = engine.CurrentContext.EvaluationStack.Pop().GetByteArray();
             if (data.Length != UInt160.Length) return false;
-            if (!engine.CheckArraySize(engine.Notifications.Count)) return false;
 
             var hash = new UInt160(data);
             IEnumerable<NotifyEventArgs> notifications = engine.Notifications;
             if (!hash.Equals(UInt160.Zero))
                 notifications = notifications.Where(p => p.ScriptHash == hash);
 
+            if (!engine.CheckArraySize(notifications.Count())) return false;
             engine.CurrentContext.EvaluationStack.Push(notifications.Select(u => new VM.Types.Array(new StackItem[] { u.ScriptHash.ToArray(), u.State })).ToArray());
             return true;
         }