Update app.py

app.py

@@ -612,7 +612,7 @@ def chat_fn(message, history):
     if retriever is None:
         return "⚠️ Retriever not initialized. Please rebuild or check vector DB."
     answer = generate_rag_response(message, retriever)
-    return f"{answer}\n\n🧠 (Context retrieved from {DATASET_REPO})"
+    return f"{answer}\n\n🧠 (Context retrieved from {pdf_path})"
 
 
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