Update app.py

app.py

@@ -77,7 +77,7 @@ with gr.Blocks() as demo:
             chat_history_tuples.append((message[0], message[1]))
 
         # Get result from QA chain
-        result = pdf_qa(query))
+        result = pdf_qa(query)
 
         # Append user message and response to chat history
         chat_history.append((query, result["answer"]))