From 016d0f14352a3d05cfb67257b3e2cfd818a87cee Mon Sep 17 00:00:00 2001
From: David Molineus <david.molineus@netzmacht.de>
Date: Thu, 6 Oct 2016 11:38:17 +0200
Subject: [PATCH] Fix alias validator.

---
 src/Netzmacht/Contao/Leaflet/Dca/Validator.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Netzmacht/Contao/Leaflet/Dca/Validator.php b/src/Netzmacht/Contao/Leaflet/Dca/Validator.php
index 6bcac9f..63f29a7 100644
--- a/src/Netzmacht/Contao/Leaflet/Dca/Validator.php
+++ b/src/Netzmacht/Contao/Leaflet/Dca/Validator.php
@@ -121,7 +121,7 @@ class Validator
      */
     public function validateAlias($value)
     {
-        if (preg_match('/[A-Za-z_][A-Za-z0-9_]+/', $value) !== 1) {
+        if (preg_match('/^[A-Za-z_]+[A-Za-z0-9_]+$/', $value) !== 1) {
             throw new \InvalidArgumentException(
                 $this->translator->translate('invalidAlias', 'leaflet')
             );