diff --git a/apps/admin-x-settings/src/components/settings/advanced/labs/AlphaFeatures.tsx b/apps/admin-x-settings/src/components/settings/advanced/labs/AlphaFeatures.tsx
index 1df4c3bdf8..c958bb2bf5 100644
--- a/apps/admin-x-settings/src/components/settings/advanced/labs/AlphaFeatures.tsx
+++ b/apps/admin-x-settings/src/components/settings/advanced/labs/AlphaFeatures.tsx
@@ -67,6 +67,10 @@ const features = [{
     title: 'Internal Linking',
     description: 'Adds internal URL search to editor link inputs',
     flag: 'internalLinking'
+},{
+    title: 'ActivityPub',
+    description: '(Highly) Experimental support for ActivityPub.',
+    flag: 'ActivityPub'
 }];
 
 const AlphaFeatures: React.FC = () => {
diff --git a/ghost/core/core/shared/labs.js b/ghost/core/core/shared/labs.js
index 1d294ebaa7..f766e82ac6 100644
--- a/ghost/core/core/shared/labs.js
+++ b/ghost/core/core/shared/labs.js
@@ -38,6 +38,7 @@ const BETA_FEATURES = [
 ];
 
 const ALPHA_FEATURES = [
+    'ActivityPub',
     'NestPlayground',
     'urlCache',
     'lexicalMultiplayer',