diff --git a/src/pretix/locale/wordlist.txt b/src/pretix/locale/wordlist.txt
index 192dd814d..415aef5c1 100644
--- a/src/pretix/locale/wordlist.txt
+++ b/src/pretix/locale/wordlist.txt
@@ -146,6 +146,9 @@ WhatsApp
 whitespace
 xlsx
 xml
+XXX
+XXXX
+XXXXX
 Yubikey
 Zimpler
 ZVT