diff --git a/utils.py b/utils.py
index 795d4cadb..cd83eee44 100644
--- a/utils.py
+++ b/utils.py
@@ -24,7 +24,7 @@ from cryptography.hazmat.primitives import hashes
 # both incoming and outgoing.
 # Could include dubious clacks or admin dogwhistles
 invalidCharacters = (
-    '卐', '卍', '࿕', '࿖', '࿗', '࿘'
+    '卐', '卍', '࿕', '࿖', '࿗', '࿘', 'ϟϟ'
 )