diff --git a/src/wp-admin/comment.php b/src/wp-admin/comment.php
index 1c46b0a9f1..ab43f97b56 100644
--- a/src/wp-admin/comment.php
+++ b/src/wp-admin/comment.php
@@ -12,6 +12,7 @@ require_once( dirname( __FILE__ ) . '/admin.php' );
 $parent_file = 'edit-comments.php';
 $submenu_file = 'edit-comments.php';
 
+global $action;
 wp_reset_vars( array('action') );
 
 if ( isset( $_POST['deletecomment'] ) )