diff --git a/wp-includes/functions-formatting.php b/wp-includes/functions-formatting.php
index 6de36cfe0..b1aa8f1b6 100644
--- a/wp-includes/functions-formatting.php
+++ b/wp-includes/functions-formatting.php
@@ -234,6 +234,7 @@ function unautobrize($content) {
 
 function format_to_edit($content) {
 	$content = stripslashes($content);
+	$content = apply_filters('format_to_edit', $content);
 	$content = htmlspecialchars($content);
 	return $content;
 }
@@ -241,6 +242,7 @@ function format_to_edit($content) {
 function format_to_post($content) {
 	global $wpdb;
 	$content = stripslashes(stripslashes($content));
+	$content = apply_filters('format_to_post', $content);
 	$content = $wpdb->escape($content);
 	return $content;
 }