6 files changed, 8 insertions, 7 deletions
diff --git a/docs/installation/alpine_linux_en.md b/docs/installation/alpine_linux_en.md
index 1d503ff9f..d3b3e8279 100644
--- a/docs/installation/alpine_linux_en.md
+++ b/docs/installation/alpine_linux_en.md
@@ -40,7 +40,7 @@ sudo apk upgrade
 * Install some tools, which are needed later:
 
 ```shell
-sudo apk add git build-base
+sudo apk add git build-base file-dev
 ```
 
 ### Install Elixir and Erlang
diff --git a/docs/installation/arch_linux_en.md b/docs/installation/arch_linux_en.md
index 428ed6bd7..36ef3e345 100644
--- a/docs/installation/arch_linux_en.md
+++ b/docs/installation/arch_linux_en.md
@@ -27,7 +27,7 @@ sudo pacman -Syu
 * Install some of the above mentioned programs:
 
 ```shell
-sudo pacman -S git base-devel elixir
+sudo pacman -S git base-devel elixir file
 ```
 
 ### Install PostgreSQL
diff --git a/docs/installation/debian_based_en.md b/docs/installation/debian_based_en.md
index 21e89d1a0..9357df5d2 100644
--- a/docs/installation/debian_based_en.md
+++ b/docs/installation/debian_based_en.md
@@ -31,7 +31,7 @@ sudo apt full-upgrade
 * Install some of the above mentioned programs:
 
 ```shell
-sudo apt install git build-essential postgresql postgresql-contrib
+sudo apt install git build-essential postgresql postgresql-contrib libmagic-devel
 ```
 
 ### Install Elixir and Erlang
diff --git a/docs/installation/debian_based_jp.md b/docs/installation/debian_based_jp.md
index 1e5a9be91..21cd4d2ad 100644
--- a/docs/installation/debian_based_jp.md
+++ b/docs/installation/debian_based_jp.md
@@ -16,6 +16,7 @@
 - `erlang-nox`
 - `git`
 - `build-essential`
+- `libmagic-dev`
 
 #### このガイドで利用している追加パッケージ
 
@@ -32,7 +33,7 @@ sudo apt full-upgrade
 
 * 上記に挙げたパッケージをインストールしておきます。
 ```
-sudo apt install git build-essential postgresql postgresql-contrib
+sudo apt install git build-essential postgresql postgresql-contrib libmagic-dev
 ```
 
 
diff --git a/docs/installation/gentoo_en.md b/docs/installation/gentoo_en.md
index e936469d0..d143e068f 100644
--- a/docs/installation/gentoo_en.md
+++ b/docs/installation/gentoo_en.md
@@ -47,7 +47,7 @@ Gentoo quite pointedly does not come with a cron daemon installed, and as such i
 * Emerge all required the required and suggested software in one go:
 
 ```shell
- # emerge --ask dev-db/postgresql dev-lang/elixir dev-vcs/git www-servers/nginx app-crypt/certbot app-crypt/certbot-nginx
+ # emerge --ask dev-db/postgresql dev-lang/elixir dev-vcs/git www-servers/nginx app-crypt/certbot app-crypt/certbot-nginx sys-apps/file
 ```
 
 If you would not like to install the optional packages, remove them from this line. 
diff --git a/docs/installation/otp_en.md b/docs/installation/otp_en.md
index 0cad29bc8..e086cc1c4 100644
--- a/docs/installation/otp_en.md
+++ b/docs/installation/otp_en.md
@@ -32,11 +32,11 @@ Other than things bundled in the OTP release Pleroma depends on:
 ```sh tab="Alpine"
 echo "http://nl.alpinelinux.org/alpine/latest-stable/community" >> /etc/apk/repositories
 apk update
-apk add curl unzip ncurses postgresql postgresql-contrib nginx certbot libmagic
+apk add curl unzip ncurses postgresql postgresql-contrib nginx certbot file-dev
 ```
 
 ```sh tab="Debian/Ubuntu"
-apt install curl unzip libncurses5 postgresql postgresql-contrib nginx certbot libmagic
+apt install curl unzip libncurses5 postgresql postgresql-contrib nginx certbot libmagic-dev
 ```
 
 ## Setup