diff --git a/src/Infrastructure/BotSharp.Core/Routing/RoutingService.InvokeFunction.cs b/src/Infrastructure/BotSharp.Core/Routing/RoutingService.InvokeFunction.cs
index a750a0ef..2bc11f76 100644
--- a/src/Infrastructure/BotSharp.Core/Routing/RoutingService.InvokeFunction.cs
+++ b/src/Infrastructure/BotSharp.Core/Routing/RoutingService.InvokeFunction.cs
@@ -10,7 +10,7 @@ public partial class RoutingService
         if (function == null)
         {
             message.StopCompletion = true;
-            message.Content = $"Can't find function implementation of {message.FunctionName}.";
+            message.Content = $"Can't find function implementation of {name}.";
             _logger.LogError(message.Content);
             return false;
         }