diff --git a/.gitignore b/.gitignore
index 3e3fe0f..0486c1d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 srv_secrets.py
 venv/
-chroma_db/
\ No newline at end of file
+chroma_db/
+__pycache__/
\ No newline at end of file
diff --git a/app.py b/linebot_app.py
similarity index 93%
rename from app.py
rename to linebot_app.py
index 5b78830..53e9a3c 100755
--- a/app.py
+++ b/linebot_app.py
@@ -111,11 +111,9 @@ def message_text(event):
     
     with ApiClient(configuration) as api_client:
         line_bot_api = MessagingApi(api_client)
-        line_bot_api.push_message_with_http_info(
-            PushMessageRequest(
-                to=event.source.user_id,
-                messages=[TextMessage(text=str(user_sessions[event.source.user_id]({"question": event.message.text})['answer']))]
-            ))
+        with str(user_sessions[event.source.user_id]({"question": event.message.text})['answer']) as answer:
+            line_bot_api.push_message_with_http_info(
+                PushMessageRequest(to=event.source.user_id,messages=[TextMessage(text=answer)]))
 
 # main is here
 if __name__ == "__main__":