diff --git a/Consul/Agent.cs b/Consul/Agent.cs
index 1350f84..b22bfe1 100644
--- a/Consul/Agent.cs
+++ b/Consul/Agent.cs
@@ -125,9 +125,16 @@ public class AgentCheck
         public HealthStatus Status { get; set; }
 
         public string Notes { get; set; }
+
+        [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
         public string Output { get; set; }
         public string ServiceID { get; set; }
+
+        [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
         public string ServiceName { get; set; }
+
+        [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
+        public AgentServiceCheck Definition { get; set; }
     }
 
     /// <summary>
diff --git a/Consul/Catalog.cs b/Consul/Catalog.cs
index 3337d6f..30c82c1 100644
--- a/Consul/Catalog.cs
+++ b/Consul/Catalog.cs
@@ -31,13 +31,18 @@ public class Node
         [JsonProperty(PropertyName = "Node")]
         public string Name { get; set; }
         public string Address { get; set; }
+        public string Datacenter { get; set; }
         public Dictionary<string, string> TaggedAddresses { get; set; }
+        public Dictionary<string, string> Meta { get; set; }
     }
 
     public class CatalogService
     {
         public string Node { get; set; }
         public string Address { get; set; }
+        public string Datacenter { get; set; }
+        public IDictionary<string, string> TaggedAddresses { get; set; }
+        public IDictionary<string, string> NodeMeta { get; set; }
         public string ServiceID { get; set; }
         public string ServiceName { get; set; }
         public string ServiceAddress { get; set; }
@@ -63,6 +68,8 @@ public class CatalogRegistration
         public string Node { get; set; }
         public string Address { get; set; }
         public string Datacenter { get; set; }
+        public IDictionary<string, string> TaggedAddresses { get; set; }
+        public IDictionary<string, string> NodeMeta { get; set; }
         public AgentService Service { get; set; }
         public AgentCheck Check { get; set; }
     }