diff --git a/lib/database/users.go b/lib/database/users.go
index d71f71b..1e53c6c 100644
--- a/lib/database/users.go
+++ b/lib/database/users.go
@@ -57,14 +57,14 @@ func (db *pgDB) AddRawUser(name string, hpass []byte, salt []byte, role string)
 
 func (db *pgDB) GetRole(name string) (string, error) {
 	var u User
-	err := db.sql.Model(&u).Where("username = ?", name).Select()
+	err := db.sql.Model(&u).Where("lower(username) = lower(?)", name).Select()
 	return u.Role, err
 }
 
 func (db *pgDB) SetRole(name, role string) error {
 	_, err := db.sql.Model(&User{}).
 		Set("role = ?", role).
-		Where("username = ?", name).
+		Where("lower(username) = lower(?)", name).
 		Update()
 	return err
 }
@@ -101,7 +101,7 @@ func (db *pgDB) SetPassword(name string, pass string) error {
 	}
 	_, err = db.sql.Model(&User{}).
 		Set("password = ?, salt = ?", hash, salt).
-		Where("username = ?", name).
+		Where("lower(username) = lower(?)", name).
 		Update()
 	return err
 }
@@ -115,7 +115,7 @@ func (db *pgDB) ListUsers() ([]User, error) {
 func (db *pgDB) getUser(name string) (User, error) {
 	var user User
 	err := db.sql.Model(&user).
-		Where("username = ?", name).
+		Where("lower(username) = lower(?)", name).
 		Select()
 	return user, err
 }