diff --git a/ja/ebook/12.3.md b/ja/ebook/12.3.md
index 8727132d..a8119298 100644
--- a/ja/ebook/12.3.md
+++ b/ja/ebook/12.3.md
@@ -123,7 +123,7 @@ Supervisordのでおフォルトの設定ファイルのパスは/etc/supervisor
 
 	;/etc/supervisord.conf
 	[unix_http_server]
-	file = /var/run/supervisor.sock
+	file = /var/run/supervisord.sock
 	chmod = 0777
 	chown= root:root