diff --git a/BossMod/Config/ConfigRoot.cs b/BossMod/Config/ConfigRoot.cs
index 77d525e19f..ee472f6f28 100644
--- a/BossMod/Config/ConfigRoot.cs
+++ b/BossMod/Config/ConfigRoot.cs
@@ -6,7 +6,7 @@ namespace BossMod;
 
 public class ConfigRoot
 {
-    private const int _version = 8;
+    private const int _version = 9;
 
     public Event Modified = new();
     private readonly Dictionary<Type, ConfigNode> _nodes = [];
@@ -298,7 +298,8 @@ private static JObject ConvertConfig(JObject payload, int version)
             amConfig["GTMode"] = autorotConfig?["GTMode"] ?? "Manual";
         }
         // v8: remove accidentally serializable Modified field
-        if (version < 8)
+        // v9: and again the same thing...
+        if (version < 9)
         {
             foreach (var (_, config) in payload)
             {
diff --git a/BossMod/Config/CooldownPlanningConfigNode.cs b/BossMod/Config/CooldownPlanningConfigNode.cs
index 369a5179af..7d5231633e 100644
--- a/BossMod/Config/CooldownPlanningConfigNode.cs
+++ b/BossMod/Config/CooldownPlanningConfigNode.cs
@@ -1,6 +1,7 @@
 using ImGuiNET;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
+using System.Reflection;
 
 namespace BossMod;
 
@@ -153,7 +154,7 @@ public override JObject Serialize(JsonSerializer ser)
     {
         var baseType = typeof(CooldownPlanningConfigNode);
         JObject res = [];
-        foreach (var f in GetType().GetFields().Where(f => f.DeclaringType != baseType))
+        foreach (var f in GetType().GetFields().Where(f => f.DeclaringType != baseType && f.GetCustomAttribute<JsonIgnoreAttribute>() == null))
         {
             var v = f.GetValue(this);
             if (v != null)