From ed9a22e0453bba75cc56f6bde7bf7b441f76234e Mon Sep 17 00:00:00 2001
From: freek <freek@spatie.be>
Date: Fri, 14 Aug 2015 23:07:14 +0200
Subject: [PATCH] add missing property

---
 src/BaseUrlSigner.php | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/BaseUrlSigner.php b/src/BaseUrlSigner.php
index eace93c..9e8217d 100644
--- a/src/BaseUrlSigner.php
+++ b/src/BaseUrlSigner.php
@@ -9,6 +9,13 @@
 
 abstract class BaseUrlSigner implements UrlSigner
 {
+    /**
+     * The key that is used to generate secure signatures.
+     *
+     * @var string
+     */
+    protected $signatureKey;
+
     /**
      * The URL's query parameter name for the expiration.
      *