diff --git a/wp-includes/default-widgets.php b/wp-includes/default-widgets.php
index 6f9d16b51a..6dcf8225fe 100644
--- a/wp-includes/default-widgets.php
+++ b/wp-includes/default-widgets.php
@@ -391,7 +391,7 @@ class WP_Widget_Text extends WP_Widget {
 		if ( current_user_can('unfiltered_html') )
 			$instance['text'] =  $new_instance['text'];
 		else
-			$instance['text'] = stripslashes( wp_filter_post_kses( $new_instance['text'] ) );
+			$instance['text'] = stripslashes( wp_filter_post_kses( addslashes($new_instance['text']) ) ); // wp_filter_post_kses() expects slashed
 		$instance['filter'] = isset($new_instance['filter']);
 		return $instance;
 	}