diff --git a/main.go b/main.go
index 3b981a2..710a1b9 100644
--- a/main.go
+++ b/main.go
@@ -58,7 +58,7 @@ func UsernameAvailable(username string) bool {
 	var tmp string
 	u := strings.ToLower(username)
 
-	q := fmt.Sprintf("select username from %s_auth where username ILIKE $1", c.TablePrefix)
+	q := fmt.Sprintf("select username from %s_auth where username = $1", c.TablePrefix)
 	err := c.db.Get(&tmp, q, u)
 	if err == sql.ErrNoRows {
 		return true
@@ -95,8 +95,8 @@ func Register(username, email, ip string) bool {
 		return true
 	}
 	log.Printf("scsusers.Register: Failed to send registration email, deleting user %s\n", username)
-	q = fmt.Sprintf("delete from %s_auth where username ILIKE $1 AND password=$2", c.TablePrefix)
-	_, err = c.db.Exec(q, username, string(crypt))
+	q = fmt.Sprintf("delete from %s_auth where username = $1 AND password=$2", c.TablePrefix)
+	_, err = c.db.Exec(q, u, string(crypt))
 	if err != nil {
 		log.Printf("scsusers.Register: Failed to delete new user %s: %s\n", username, err.Error())
 	}