diff --git a/debian/changelog b/debian/changelog
index d64dc00..f242c40 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,4 +1,4 @@
-php-vn-lib (1.308-deb8) stable; urgency=low
+php-vn-lib (1.309-deb8) stable; urgency=low
 
   * Initial Release.
 
diff --git a/lib/app.php b/lib/app.php
index 0847a9e..d7fb8d4 100644
--- a/lib/app.php
+++ b/lib/app.php
@@ -7,6 +7,8 @@ require_once __DIR__.'/util.php';
 use Vn\Db\Connection;
 use Vn\Lib\Locale;
 
+if (!defined ('_ENABLE_DEBUG'))
+	define ('_ENABLE_DEBUG', FALSE);
 if (!defined ('_DEV_MODE'))
 	define ('_DEV_MODE', FALSE);
 if (!defined ('_CONFIG_DIR'))