diff --git a/util/reserved.json b/util/reserved.json
index 886d80aa2..c4b8fcf99 100644
--- a/util/reserved.json
+++ b/util/reserved.json
@@ -3,6 +3,7 @@
     "_atproto.www",
     "_discord.www",
     "_vercel.www",
+    "acc",
     "account",
     "accounts",
     "admin",