diff --git a/src/models/user.ts b/src/models/user.ts
index ee95854b95..b4daa906ca 100644
--- a/src/models/user.ts
+++ b/src/models/user.ts
@@ -108,6 +108,7 @@ export interface ILocalUser extends IUserBase {
 
 export interface IRemoteUser extends IUserBase {
 	inbox: string;
+	sharedInbox?: string;
 	endpoints: string[];
 	uri: string;
 	url?: string;
diff --git a/src/remote/activitypub/models/person.ts b/src/remote/activitypub/models/person.ts
index 83afd68268..c6f3e8911c 100644
--- a/src/remote/activitypub/models/person.ts
+++ b/src/remote/activitypub/models/person.ts
@@ -117,6 +117,7 @@ export async function createPerson(value: any, resolver?: Resolver): Promise<IUs
 				publicKeyPem: person.publicKey.publicKeyPem
 			},
 			inbox: person.inbox,
+			sharedInbox: person.sharedInbox,
 			endpoints: person.endpoints,
 			uri: person.id,
 			url: person.url,
@@ -239,6 +240,8 @@ export async function updatePerson(value: string | IObject, resolver?: Resolver)
 	await User.update({ _id: exist._id }, {
 		$set: {
 			updatedAt: new Date(),
+			inbox: person.inbox,
+			sharedInbox: person.sharedInbox,
 			avatarId: avatar ? avatar._id : null,
 			bannerId: banner ? banner._id : null,
 			avatarUrl: avatar && avatar.metadata.isMetaOnly ? avatar.metadata.url : null,
diff --git a/src/remote/activitypub/type.ts b/src/remote/activitypub/type.ts
index 13e1969b4e..9761b66dc3 100644
--- a/src/remote/activitypub/type.ts
+++ b/src/remote/activitypub/type.ts
@@ -47,6 +47,7 @@ export interface IPerson extends IObject {
 	preferredUsername: string;
 	manuallyApprovesFollowers: boolean;
 	inbox: string;
+	sharedInbox?: string;
 	publicKey: any;
 	followers: any;
 	following: any;