diff --git a/jellyfin_wol.py b/jellyfin_wol.py
index 15a0132..f48a0d1 100755
--- a/jellyfin_wol.py
+++ b/jellyfin_wol.py
@@ -14,7 +14,7 @@ class SimpleHTTPRequestHandler(BaseHTTPRequestHandler):
         # Check if the payload indicates a user login event
         if 'NotificationType' in post_data and 'AuthenticationSuccess' in post_data['NotificationType']:
             print("User login detected! Waking up NAS.")
-            send_magic_packet('1c:1b:0d:99:5c:48')
+            send_magic_packet(os.getenv('MAC_ADDRESS', 'FF:FF:FF:FF:FF:FF'))
 
         # Send a 200 OK response
         self.send_response(200)