diff --git a/pages.it/common/ack.md b/pages.it/common/ack.md
index 3185773b9..237c3817b 100644
--- a/pages.it/common/ack.md
+++ b/pages.it/common/ack.md
@@ -1,6 +1,7 @@
 # ack
 
 > Un tool di ricerca simile a `grep`, ottimizzato per programmatori.
+> Homepage: <https://beyondgrep.com/documentation/>.
 
 - Trova file contenenti "foo":