diff --git a/docs/content/doc/installation/with-docker-rootless.en-us.md b/docs/content/doc/installation/with-docker-rootless.en-us.md
index b0423fafc066..028d81ab913e 100644
--- a/docs/content/doc/installation/with-docker-rootless.en-us.md
+++ b/docs/content/doc/installation/with-docker-rootless.en-us.md
@@ -293,13 +293,13 @@ These environment variables can be passed to the docker container in `docker-com
 services:
   server:
     environment:
-    - GITEA__mailer__ENABLED=true
-    - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
-    - GITEA__mailer__MAILER_TYPE=smtp
-    - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
-    - GITEA__mailer__IS_TLS_ENABLED=true
-    - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}
-    - GITEA__mailer__PASSWD="""${GITEA__mailer__PASSWD:?GITEA__mailer__PASSWD not set}"""
+      - GITEA__mailer__ENABLED=true
+      - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
+      - GITEA__mailer__MAILER_TYPE=smtp
+      - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
+      - GITEA__mailer__IS_TLS_ENABLED=true
+      - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}
+      - GITEA__mailer__PASSWD="""${GITEA__mailer__PASSWD:?GITEA__mailer__PASSWD not set}"""
 ```
 
 To set required TOKEN and SECRET values, consider using Gitea's built-in [generate utility functions](https://docs.gitea.io/en-us/command-line/#generate).
diff --git a/docs/content/doc/installation/with-docker.en-us.md b/docs/content/doc/installation/with-docker.en-us.md
index 3089697728f9..90c6e7b5f3ea 100644
--- a/docs/content/doc/installation/with-docker.en-us.md
+++ b/docs/content/doc/installation/with-docker.en-us.md
@@ -294,13 +294,13 @@ These environment variables can be passed to the docker container in `docker-com
 services:
   server:
     environment:
-    - GITEA__mailer__ENABLED=true
-    - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
-    - GITEA__mailer__MAILER_TYPE=smtp
-    - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
-    - GITEA__mailer__IS_TLS_ENABLED=true
-    - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}
-    - GITEA__mailer__PASSWD="""${GITEA__mailer__PASSWD:?GITEA__mailer__PASSWD not set}"""
+      - GITEA__mailer__ENABLED=true
+      - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
+      - GITEA__mailer__MAILER_TYPE=smtp
+      - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
+      - GITEA__mailer__IS_TLS_ENABLED=true
+      - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}
+      - GITEA__mailer__PASSWD="""${GITEA__mailer__PASSWD:?GITEA__mailer__PASSWD not set}"""
 ```
 
 Gitea will generate new secrets/tokens for every new installation automatically and write them into the app.ini. If you want to set the secrets/tokens manually, you can use the following docker commands to use of Gitea's built-in [generate utility functions](https://docs.gitea.io/en-us/command-line/#generate). Do not lose/change your SECRET_KEY after the installation, otherwise the encrypted data can not be decrypted anymore.
diff --git a/docs/content/doc/installation/with-docker.zh-cn.md b/docs/content/doc/installation/with-docker.zh-cn.md
index 337cac155f3c..cae28c70b866 100644
--- a/docs/content/doc/installation/with-docker.zh-cn.md
+++ b/docs/content/doc/installation/with-docker.zh-cn.md
@@ -285,13 +285,13 @@ docker-compose up -d
 services:
   server:
     environment:
-    - GITEA__mailer__ENABLED=true
-    - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
-    - GITEA__mailer__MAILER_TYPE=smtp
-    - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
-    - GITEA__mailer__IS_TLS_ENABLED=true
-    - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}
-    - GITEA__mailer__PASSWD="""${GITEA__mailer__PASSWD:?GITEA__mailer__PASSWD not set}"""
+      - GITEA__mailer__ENABLED=true
+      - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
+      - GITEA__mailer__MAILER_TYPE=smtp
+      - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
+      - GITEA__mailer__IS_TLS_ENABLED=true
+      - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}
+      - GITEA__mailer__PASSWD="""${GITEA__mailer__PASSWD:?GITEA__mailer__PASSWD not set}"""
 ```
 
 Gitea 将为每次新安装自动生成新的 `SECRET_KEY` 并将它们写入 `app.ini`。 如果您想手动设置 `SECRET_KEY`，您可以使用以下 docker 命令来使用 Gitea 内置的[方法](https://docs.gitea.io/en-us/command-line/#generate)生成 `SECRET_KEY`。 安装后请妥善保管您的 `SECRET_KEY`，如若丢失则无法解密已加密的数据。