diff --git a/src/backend/html_markdown.py b/src/backend/html_markdown.py
index 49cf5116..bcb6cbaf 100644
--- a/src/backend/html_markdown.py
+++ b/src/backend/html_markdown.py
@@ -298,7 +298,7 @@ class HTMLProcessor:
"span": {"data-mx-color"},
}}
- username_link_regexes = [re.compile(r, re.IGNORECASE) for r in [
+ username_link_regexes = [re.compile(r) for r in [
rf"(?{re.escape(username)})(?!\w)(?P)"
for username in self.rooms_user_id_names[room_id].values()
]]