diff --git a/wp-includes/wp-db.php b/wp-includes/wp-db.php
index 391cfa4dc9..14e765a882 100644
--- a/wp-includes/wp-db.php
+++ b/wp-includes/wp-db.php
@@ -536,7 +536,7 @@ class wpdb {
 	function __construct( $dbuser, $dbpassword, $dbname, $dbhost ) {
 		register_shutdown_function( array( $this, '__destruct' ) );
 
-		if ( WP_DEBUG )
+		if ( WP_DEBUG && WP_DEBUG_DISPLAY )
 			$this->show_errors();
 
 		$this->init_charset();