diff --git a/docs/themes/default/config.md b/docs/themes/default/config.md
index 9d84df5a77..401b6125fc 100644
--- a/docs/themes/default/config.md
+++ b/docs/themes/default/config.md
@@ -2,6 +2,14 @@
 
 ## Basic Config
 
+### hostname
+
+- Type: `string`
+
+- Details:
+
+  Hostname to be deployed, e.g.: `https://example.com`
+
 ### locales
 
 - Type: `{ [path: string]: Partial<DefaultThemeLocaleData> }`
diff --git a/docs/zh/themes/default/config.md b/docs/zh/themes/default/config.md
index 6bee6d63ce..062bb2269c 100644
--- a/docs/zh/themes/default/config.md
+++ b/docs/zh/themes/default/config.md
@@ -2,6 +2,14 @@
 
 ## 基础配置
 
+### hostname
+
+- 类型： `string`
+
+- 详情：
+
+  部署的域名, e.g.: `https://example.com`
+
 ### locales
 
 - 类型： `{ [path: string]: Partial<DefaultThemeLocaleData> }`