diff --git a/src/Infrastructure/BotSharp.OpenAPI/ViewModels/Agents/Request/RoutingRuleUpdateModel.cs b/src/Infrastructure/BotSharp.OpenAPI/ViewModels/Agents/Request/RoutingRuleUpdateModel.cs
index fafde9abf..c360622eb 100644
--- a/src/Infrastructure/BotSharp.OpenAPI/ViewModels/Agents/Request/RoutingRuleUpdateModel.cs
+++ b/src/Infrastructure/BotSharp.OpenAPI/ViewModels/Agents/Request/RoutingRuleUpdateModel.cs
@@ -1,4 +1,5 @@
 using BotSharp.Abstraction.Routing.Models;
+using System.Text.Json.Serialization;
 
 namespace BotSharp.OpenAPI.ViewModels.Agents;
 
@@ -7,6 +8,7 @@ public class RoutingRuleUpdateModel
     public string? Field { get; set; }
     public string? Description { get; set; }
     public string? Type { get; set; }
+    [JsonPropertyName("field_type")]
     public string? FieldType { get; set; }
     public bool Required { get; set; }
     public string? RedirectTo { get; set; }