diff --git a/sample/Program.cs b/sample/Program.cs
index 502da65..8a1a9b6 100644
--- a/sample/Program.cs
+++ b/sample/Program.cs
@@ -62,7 +62,7 @@ await memory
         .WithStructRagSearchClient()
         .Build();
 
-answer = await memory.AskAsync(question);
+answer = await structRagMemory.AskAsync(question);
 Console.WriteLine("StructRAG Memory Answer");
 Console.WriteLine(answer.Result);