diff --git a/Scripts/Node.cs b/Scripts/Node.cs
index 0e0449f..ddc43ea 100644
--- a/Scripts/Node.cs
+++ b/Scripts/Node.cs
@@ -202,6 +202,10 @@ namespace XNode {
             foreach (NodePort port in Ports) port.ClearConnections();
         }
 
+        public override int GetHashCode() {
+            return JsonUtility.ToJson(this).GetHashCode();
+        }
+
         /// <summary> Mark a serializable field as an input port. You can access this through <see cref="GetInputPort(string)"/> </summary>
         [AttributeUsage(AttributeTargets.Field, AllowMultiple = true)]
         public class InputAttribute : Attribute {