diff --git a/config/environments/development.php b/config/environments/development.php
index d29ef6a43e..71a65266fa 100644
--- a/config/environments/development.php
+++ b/config/environments/development.php
@@ -7,6 +7,7 @@
 
 Config::define('SAVEQUERIES', true);
 Config::define('WP_DEBUG', true);
+Config::define('WP_DEBUG_DISPLAY', true);
 Config::define('SCRIPT_DEBUG', true);
 
 ini_set('display_errors', 1);