diff --git a/src/Seq.Api/Model/Signals/SignalEntity.cs b/src/Seq.Api/Model/Signals/SignalEntity.cs
index c7aa3c4..d850d04 100644
--- a/src/Seq.Api/Model/Signals/SignalEntity.cs
+++ b/src/Seq.Api/Model/Signals/SignalEntity.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using Newtonsoft.Json;
 
 namespace Seq.Api.Model.Signals
 {
@@ -22,8 +23,9 @@ public SignalEntity()
 
         public bool IsWatched { get; set; }
 
-        [Obsolete("This member has been renamed `IsProtected` to better reflect its purpose.")]
         // ReSharper disable once UnusedMember.Global
+        [Obsolete("This member has been renamed `IsProtected` to better reflect its purpose.")]
+        [JsonProperty(DefaultValueHandling = DefaultValueHandling.Ignore)]
         public bool? IsRestricted { get; set; }
 
         public bool IsProtected { get; set; }