diff --git a/mastodon-presentazione.md b/mastodon-presentazione.md
index 904a866..29d50df 100644
--- a/mastodon-presentazione.md
+++ b/mastodon-presentazione.md
@@ -19,7 +19,7 @@ Social networking service [^1]
 
 Mailinglist, forum, istant-messaging
 
-[^1]: https://en.wikipedia.org/wiki/Social_networking_service  
+[^1] https://en.wikipedia.org/wiki/Social_networking_service  
 
 
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