diff --git a/index.php b/index.php
index bf5c234c..6d11346c 100644
--- a/index.php
+++ b/index.php
@@ -28,8 +28,6 @@ if(file_exists('DEBUG')) {
 
 require_once __DIR__ . '/lib/RssBridge.php';
 
-define('PHP_VERSION_REQUIRED', '5.6.0');
-
 // Specify directory for cached files (using FileCache)
 define('CACHE_DIR', __DIR__ . '/cache');
 
diff --git a/lib/Configuration.php b/lib/Configuration.php
index b76744f5..bc7b5895 100644
--- a/lib/Configuration.php
+++ b/lib/Configuration.php
@@ -8,8 +8,8 @@ class Configuration {
 	public static function verifyInstallation() {
 
 		// Check PHP version
-		if(version_compare(PHP_VERSION, PHP_VERSION_REQUIRED) === -1)
-			die('RSS-Bridge requires at least PHP version ' . PHP_VERSION_REQUIRED . '!');
+		if(version_compare(PHP_VERSION, '5.6.0') === -1)
+			die('RSS-Bridge requires at least PHP version 5.6.0!');
 
 		// extensions check
 		if(!extension_loaded('openssl'))