diff --git a/index.php b/index.php
index 5251436e..7b41586c 100644
--- a/index.php
+++ b/index.php
@@ -28,9 +28,6 @@ if(file_exists('DEBUG')) {
 
 require_once __DIR__ . '/lib/rssbridge.php';
 
-// Specify path for whitelist file
-define('WHITELIST_FILE', __DIR__ . '/whitelist.txt');
-
 Configuration::verifyInstallation();
 Configuration::loadConfiguration();
 
@@ -80,13 +77,13 @@ $whitelist_default = array(
 
 try {
 
-	if(!file_exists(WHITELIST_FILE)) {
+	if(!file_exists(WHITELIST)) {
 		$whitelist_selection = $whitelist_default;
 		$whitelist_write = implode("\n", $whitelist_default);
-		file_put_contents(WHITELIST_FILE, $whitelist_write);
+		file_put_contents(WHITELIST, $whitelist_write);
 	} else {
 
-		$whitelist_file_content = file_get_contents(WHITELIST_FILE);
+		$whitelist_file_content = file_get_contents(WHITELIST);
 		if($whitelist_file_content != "*\n") {
 			$whitelist_selection = explode("\n", $whitelist_file_content);
 		} else {
diff --git a/lib/Configuration.php b/lib/Configuration.php
index a839fdc2..e141ce93 100644
--- a/lib/Configuration.php
+++ b/lib/Configuration.php
@@ -34,9 +34,9 @@ class Configuration {
 		if(!is_writable(PATH_CACHE))
 			die('RSS-Bridge does not have write permissions for ' . PATH_CACHE . '!');
 
-		// Check whitelist file permissions (only in DEBUG mode)
-		if(!file_exists(WHITELIST_FILE) && !is_writable(dirname(WHITELIST_FILE)))
-			die('RSS-Bridge does not have write permissions for ' . WHITELIST_FILE . '!');
+		// Check whitelist file permissions
+		if(!file_exists(WHITELIST) && !is_writable(dirname(WHITELIST)))
+			die('RSS-Bridge does not have write permissions for ' . WHITELIST . '!');
 
 	}
 
diff --git a/lib/rssbridge.php b/lib/rssbridge.php
index 927c95a3..458300fb 100644
--- a/lib/rssbridge.php
+++ b/lib/rssbridge.php
@@ -6,6 +6,7 @@ define('PATH_LIB_BRIDGES', __DIR__ . '/../bridges/'); // Path to bridges library
 define('PATH_LIB_FORMATS', __DIR__ . '/../formats/'); // Path to formats library
 define('PATH_LIB_CACHES', __DIR__ . '/../caches/'); // Path to caches library
 define('PATH_CACHE', __DIR__ . '/../cache/'); // Path to cache folder
+define('WHITELIST', __DIR__ . '/../whitelist.txt'); // Path to whitelist file
 define('REPOSITORY', 'https://github.com/RSS-Bridge/rss-bridge/');
 
 // Interfaces