diff --git a/docs/config/theme-configs.md b/docs/config/theme-configs.md
index e0bf13c6..9db0170b 100644
--- a/docs/config/theme-configs.md
+++ b/docs/config/theme-configs.md
@@ -193,6 +193,7 @@ type SocialLinkIcon =
| 'github'
| 'instagram'
| 'linkedin'
+ | 'mastodon'
| 'slack'
| 'twitter'
| 'youtube'
diff --git a/src/client/theme-default/support/socialIcons.ts b/src/client/theme-default/support/socialIcons.ts
index 90fb19ab..05d538d7 100644
--- a/src/client/theme-default/support/socialIcons.ts
+++ b/src/client/theme-default/support/socialIcons.ts
@@ -11,6 +11,8 @@ export const icons = {
'',
linkedin:
'',
+ mastodon:
+ '',
slack:
'',
twitter:
diff --git a/types/default-theme.d.ts b/types/default-theme.d.ts
index 387385ac..f62f8a62 100644
--- a/types/default-theme.d.ts
+++ b/types/default-theme.d.ts
@@ -201,6 +201,7 @@ export namespace DefaultTheme {
| 'github'
| 'instagram'
| 'linkedin'
+ | 'mastodon'
| 'slack'
| 'twitter'
| 'youtube'