diff --git a/discord_rss_bot/main.py b/discord_rss_bot/main.py
index e20d3c0..6fb61a6 100644
--- a/discord_rss_bot/main.py
+++ b/discord_rss_bot/main.py
@@ -93,8 +93,8 @@ async def create_feed(feed_url: str = Form(), webhook_dropdown: str = Form()) ->
 
     # Check if set_hook_by_name() was successful.
     if isinstance(
-            set_hook_by_name(name=webhook_dropdown, feed_url=feed_url),
-            ResourceNotFoundError,
+        set_hook_by_name(name=webhook_dropdown, feed_url=feed_url),
+        ResourceNotFoundError,
     ):
         return set_hook_by_name(name=webhook_dropdown, feed_url=feed_url)
 
@@ -247,5 +247,16 @@ def startup() -> None:
     scheduler.start()
 
 
+@app.on_event("shutdown")
+def shutdown() -> None:
+    """This is called when the server shuts down.
+
+    It stops the scheduler."""
+    scheduler: BackgroundScheduler = BackgroundScheduler()
+    scheduler.shutdown()
+
+    reader.close()
+
+
 if __name__ == "__main__":
     uvicorn.run("main:app", log_level="debug", reload=True)