diff --git a/wp-admin/admin-ajax.php b/wp-admin/admin-ajax.php
index 614812a2c3..e47296ec95 100644
--- a/wp-admin/admin-ajax.php
+++ b/wp-admin/admin-ajax.php
@@ -640,6 +640,8 @@ case 'get-comments' :
 case 'replyto-comment' :
 	check_ajax_referer( $action, '_ajax_nonce-replyto-comment' );
 
+	set_current_screen( 'edit-comments' );
+
 	$wp_list_table = get_list_table('WP_Comments_List_Table');
 	$wp_list_table->checkbox = ( isset($_POST['checkbox']) && true == $_POST['checkbox'] ) ? 1 : 0;
 
diff --git a/wp-admin/includes/deprecated.php b/wp-admin/includes/deprecated.php
index cc421e4a6a..49597cc5b3 100644
--- a/wp-admin/includes/deprecated.php
+++ b/wp-admin/includes/deprecated.php
@@ -721,7 +721,11 @@ function print_column_headers($screen, $id = true) {
 	$wp_list_table->print_column_headers($id);
 }
 
-// Helper class to be used only by deprecated functions
+/**
+ * Helper class to be used only by deprecated functions
+ *
+ * @since 3.1.0
+ */
 class _WP_List_Table_Compat extends WP_List_Table {
 	var $_screen;
 	var $_columns;