diff --git a/docs/setup.en.md b/docs/setup.en.md
index dfe50a6600a574562d4f80808f53a700ed2b2cd2..af6b2de9ec8b733df5210bcd8ab7d575f71da9f7 100644
--- a/docs/setup.en.md
+++ b/docs/setup.en.md
@@ -40,7 +40,7 @@ Please install and setup these softwares:
 
 2. Clone the misskey repo from master branch.
 
-	`git clone -b master git://github.com/misskey-dev/misskey.git`
+	`git clone --recursive -b master git://github.com/misskey-dev/misskey.git`
 
 3. Navigate to misskey directory
 
diff --git a/docs/setup.fr.md b/docs/setup.fr.md
index f38c7a8eab90e8429446eb4b6e5e8208f7b495a2..d26ebe285940b0049ddd46a1fa5fd6abd3e45e57 100644
--- a/docs/setup.fr.md
+++ b/docs/setup.fr.md
@@ -41,7 +41,7 @@ Installez les paquets suivants :
 
 2. Clonez la branche master du dépôt misskey.
 
-	`git clone -b master git://github.com/misskey-dev/misskey.git`
+	`git clone --recursive -b master git://github.com/misskey-dev/misskey.git`
 
 3. Accédez au dossier misskey.
 
diff --git a/docs/setup.ja.md b/docs/setup.ja.md
index 5681ee8c511eeac151aa598ed8685dbfe5e8c32a..6e1cbda87b607efcab264f877aa534cbfb264adf 100644
--- a/docs/setup.ja.md
+++ b/docs/setup.ja.md
@@ -42,7 +42,7 @@ adduser --disabled-password --disabled-login misskey
 
 2. masterブランチからMisskeyレポジトリをクローン
 
-	`git clone -b master git://github.com/misskey-dev/misskey.git`
+	`git clone --recursive -b master git://github.com/misskey-dev/misskey.git`
 
 3. misskeyディレクトリに移動
 
diff --git a/docs/setup.zh.md b/docs/setup.zh.md
index 26a72f0d05a1ba81783698cf0c35b55be78374c1..7a6c38b3594a96c95e96b65f1a93195361a553aa 100644
--- a/docs/setup.zh.md
+++ b/docs/setup.zh.md
@@ -40,7 +40,7 @@ adduser --disabled-password --disabled-login misskey
 
 2. 克隆 Misskey 项目的 master 分支。
 
-	`git clone -b master git://github.com/misskey-dev/misskey.git`
+	`git clone --recursive -b master git://github.com/misskey-dev/misskey.git`
 
 3. 进入 misskey 文件夹。
 
diff --git a/twemoji b/twemoji
new file mode 160000
index 0000000000000000000000000000000000000000..793a6a93f303c08877dd6eb589b2fabb3d1c45ee
--- /dev/null
+++ b/twemoji
@@ -0,0 +1 @@
+Subproject commit 793a6a93f303c08877dd6eb589b2fabb3d1c45ee