diff --git a/wp-includes/post.php b/wp-includes/post.php
index d305dd82e8..c4ce1af425 100644
--- a/wp-includes/post.php
+++ b/wp-includes/post.php
@@ -2075,7 +2075,7 @@ function wp_trash_post($post_id = 0) {
 	if ( $post['post_status'] == 'trash' )
 		return false;
 
-	do_action('trash_post', $post_id);
+	do_action('wp_trash_post', $post_id);
 
 	add_post_meta($post_id,'_wp_trash_meta_status', $post['post_status']);
 	add_post_meta($post_id,'_wp_trash_meta_time', time());