diff --git a/lib/domains/tlds.txt b/lib/domains/tlds.txt
index 290127533f..fa35076536 100644
--- a/lib/domains/tlds.txt
+++ b/lib/domains/tlds.txt
@@ -8,6 +8,7 @@ ac.cy
 ac.fj
 ac.gg
 ac.gn
+ac.id
 ac.il
 ac.in
 ac.ir