diff --git a/files/helpers/get.py b/files/helpers/get.py
index 3a9ee539cb..8ade6c30a9 100644
--- a/files/helpers/get.py
+++ b/files/helpers/get.py
@@ -75,8 +75,8 @@ def get_users(usernames, v=None, graceful=False):
 
 	users = g.db.query(User).filter(
 		or_(
-			User.username == any_(usernames),
-			User.original_username == any_(usernames)
+			User.username.ilike(any_(usernames)),
+			User.original_username.ilike(any_(usernames))
 			)
 		).all()
 
diff --git a/files/helpers/sanitize.py b/files/helpers/sanitize.py
index 638c510624..7f7d3bc82b 100644
--- a/files/helpers/sanitize.py
+++ b/files/helpers/sanitize.py
@@ -201,7 +201,7 @@ def sanitize(sanitized, alert=False, edit=False):
 
 		for u in users:
 			if not u: continue
-			m = [ m for m in matches if u.username == m.group(2) or u.original_username == m.group(2) ]
+			m = [ m for m in matches if u.username.lower() == m.group(2).lower() or u.original_username.lower() == m.group(2).lower() ]
 			for i in m:
 				if not (g.v and g.v.any_block_exists(u)) or g.v.admin_level > 1:
 					sanitized = sanitized.replace(i.group(0), f'''{i.group(1)}<a href="/id/{u.id}"><img loading="lazy" src="/pp/{u.id}">@{u.username}</a>''', 1)