diff --git a/README.md b/README.md
index d04955c..ce6c113 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # taro-series
+
 A WordPress plugin for creating series.
+
diff --git a/src/Tarosky/Series/Controller/Setting.php b/src/Tarosky/Series/Controller/Setting.php
index 4b86823..816785d 100644
--- a/src/Tarosky/Series/Controller/Setting.php
+++ b/src/Tarosky/Series/Controller/Setting.php
@@ -35,7 +35,7 @@ public function admin_setting() {
 		// Register fields.
 		add_settings_field( 'taro_series_post_types', __( 'Post Type', 'taro-series' ), function() {
 			$post_types = get_post_types( [ 'public' => true ], OBJECT );
-			$post_types = apply_filters( 'taro_series_post_types_choices', array_values( array_filter( $post_types, function( WP_Post_Type $post_type ) {
+			$post_types = apply_filters( 'taro_series_post_types_choices', array_values( array_filter( $post_types, function( \WP_Post_Type $post_type ) {
 				return ! in_array( $post_type->name, [ 'attachment', taro_series_parent_post_type() ], true );
 			} ) ) );
 			$value      = (array) get_option( 'taro_series_post_types', [] );
diff --git a/taro-series.php b/taro-series.php
index 35a7d81..3e55cd3 100644
--- a/taro-series.php
+++ b/taro-series.php
@@ -1,8 +1,8 @@
 <?php
 /**
-Plugin Name: Real Time Validation for Contact Form 7
+Plugin Name: Taro Series
 Plugin URI: https://wordpress.org/plugins/taro-series/
-Description: Add realtime validation for Contact Form 7.
+Description: Add serries feature to your WordPress site.
 Author: Tarosky INC.
 Version: nightly
 Author URI: https://tarosky.co.jp/