diff --git a/core/Core.php b/core/Core.php
index de6054961..13c355829 100644
--- a/core/Core.php
+++ b/core/Core.php
@@ -40,7 +40,7 @@
 ///////////////////////////////////////////////////////////////////////////////
 // ENVIRONMENT CONFIG
 
-if(defined('E_DEPRECATED')) error_reporting(E_ALL ^ E_DEPRECATED);
+if(defined('E_DEPRECATED')) error_reporting(E_ALL & ~(E_DEPRECATED | E_STRICT));
 else error_reporting(E_ALL);
 /*
  * This is for versions of PHP prior to version 5.2