diff --git a/docs/images/docker-mastodon.md b/docs/images/docker-mastodon.md
index 7cc8f4406..cff8cba73 100755
--- a/docs/images/docker-mastodon.md
+++ b/docs/images/docker-mastodon.md
@@ -386,7 +386,7 @@ Below are the instructions for updating containers:
 
 ### Image Update Notifications - Diun (Docker Image Update Notifier)
 
-!!! tip 
+!!! tip
 
     We recommend [Diun](https://crazymax.dev/diun/) for update notifications. Other tools that automatically update containers unattended are not recommended or supported.