diff --git a/auth-mastodon.py b/auth-mastodon.py
index 2a1b0bf..ad366dc 100644
--- a/auth-mastodon.py
+++ b/auth-mastodon.py
@@ -12,7 +12,7 @@ db_name="mastodon"
 
 # This is the query that pulls the password hash for the given user. Mastodon doesn't store the domain for local accounts in
 # the database, so we ignore the host component and try to match username where the domain is NULL.
-db_query_getpass="select users.encrypted_password as password from accounts inner join users on accounts.id=users.account_id where accounts.username = %(user)s and accounts.domain is null"
+db_query_getpass="select users.encrypted_password as password from accounts inner join users on accounts.id=users.account_id where lower(accounts.username) = %(user)s and accounts.domain is null"
 
 ########################################################################
 #Setup
@@ -97,7 +97,7 @@ def get_password(user, host):
 	# Right now we ignore the host component, as Mastodon doesn't store it for local accounts.
 	# It may be required one day, so the code to handle passing it to the query is left in for now.
 	cursor = database.cursor()
-	cursor.execute(db_query_getpass, {"user": user, "host": host})
+	cursor.execute(db_query_getpass, {"user": user.lower(), "host": host})
 	data = cursor.fetchone()
 	cursor.close()
 	return data[0] if data != None else None