diff --git a/packages/backend/src/remote/activitypub/models/person.ts b/packages/backend/src/remote/activitypub/models/person.ts
index ec747017e..17bac8596 100644
--- a/packages/backend/src/remote/activitypub/models/person.ts
+++ b/packages/backend/src/remote/activitypub/models/person.ts
@@ -448,6 +448,8 @@ export async function updatePerson(
 
 	const person = validateActor(object, uri);
 
+	const host = await getSubjectHostFromUri(uri);
+
 	logger.info(`Updating the Person: ${person.id}`);
 
 	// Fetch avatar and header image
@@ -554,6 +556,10 @@ export async function updatePerson(
 		updates.bannerId = banner.id;
 	}
 
+	if (host) {
+		updates.host = host;
+	}
+
 	// Update user
 	await Users.update(user.id, updates);