diff --git a/docs/reference/default-theme-config.md b/docs/reference/default-theme-config.md
index fb6d30b5..980fa0aa 100644
--- a/docs/reference/default-theme-config.md
+++ b/docs/reference/default-theme-config.md
@@ -246,6 +246,7 @@ type SocialLinkIcon =
   | 'mastodon'
   | 'slack'
   | 'twitter'
+  | 'x'
   | 'youtube'
   | { svg: string }
 ```
diff --git a/docs/zh/reference/default-theme-config.md b/docs/zh/reference/default-theme-config.md
index bf439196..f9c3f561 100644
--- a/docs/zh/reference/default-theme-config.md
+++ b/docs/zh/reference/default-theme-config.md
@@ -246,6 +246,7 @@ type SocialLinkIcon =
   | 'mastodon'
   | 'slack'
   | 'twitter'
+  | 'x'
   | 'youtube'
   | { svg: string }
 ```