diff --git a/mopidy_webhooks/frontend.py b/mopidy_webhooks/frontend.py
index 11d4228..14342d2 100644
--- a/mopidy_webhooks/frontend.py
+++ b/mopidy_webhooks/frontend.py
@@ -60,7 +60,7 @@ class WebhooksFrontend(pykka.ThreadingActor, CoreListener):
                 logger.info(f"No token found for Webhook URL: {webhook_url}")
 
             if token:
-                headers["Authorization"] = "Token {token}"
+                headers["Authorization"] = "Token f{token}"
 
             response = requests.post(
                 webhook_url, json=json.dumps(post_data), headers=headers