diff --git a/docs/setup.en.md b/docs/setup.en.md
index 5a277f19b..2ae017478 100644
--- a/docs/setup.en.md
+++ b/docs/setup.en.md
@@ -31,7 +31,7 @@ Please install and setup these softwares:
 * [Elasticsearch](https://www.elastic.co/) - used to provide searching feature instead of MongoDB
 
 
-*3.* Setup Mongodb Database
+*3.* Setup MongoDB
 ----------------------------------------------------------------
 In root :
 1. `mongo` Go to the mongo shell
diff --git a/docs/setup.ja.md b/docs/setup.ja.md
index aa8d8d99f..75997cfbc 100644
--- a/docs/setup.ja.md
+++ b/docs/setup.ja.md
@@ -30,7 +30,7 @@ adduser --disabled-password --disabled-login misskey
 ##### オプション
 * [Elasticsearch](https://www.elastic.co/) - 検索機能を向上させるために用います。
 
-*3.* Mongodbの設定
+*3.* MongoDBの設定
 ----------------------------------------------------------------
 ルートで:
 1. `mongo` mongoシェルを起動