From 5b3178e049dfc4b951bde553c2842598ae5aa384 Mon Sep 17 00:00:00 2001
From: Dennis Eichhorn <spl1nes.com@googlemail.com>
Date: Sat, 8 Sep 2018 19:40:19 +0200
Subject: [PATCH] Fix validation bug

---
 Utils/Barcode/C128Abstract.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Utils/Barcode/C128Abstract.php b/Utils/Barcode/C128Abstract.php
index dea55dcd5..3119214a1 100644
--- a/Utils/Barcode/C128Abstract.php
+++ b/Utils/Barcode/C128Abstract.php
@@ -273,7 +273,7 @@ abstract class C128Abstract
      *
      * @since  1.0.0
      */
-    public function isValidString(string $barcode) : bool
+    public static function isValidString(string $barcode) : bool
     {
         $length = \strlen($barcode);