diff --git a/src/api/posts.js b/src/api/posts.js
index 04c9384177..dbdec5817d 100644
--- a/src/api/posts.js
+++ b/src/api/posts.js
@@ -321,6 +321,10 @@ postsAPI.move = async function (caller, data) {
 
 	if (!postDeleted && !topicDeleted) {
 		socketHelpers.sendNotificationToPostOwner(data.pid, caller.uid, 'move', 'notifications:moved-your-post');
+
+		// ideally we should federate a "move" activity instead. tbd
+		const { activity } = await activitypub.mocks.activities.create(data.pid, caller.uid);
+		await activitypub.feps.announce(data.pid, activity);
 	}
 };
 
diff --git a/test/activitypub/feps.js b/test/activitypub/feps.js
index ff9738a80b..274de2b3ea 100644
--- a/test/activitypub/feps.js
+++ b/test/activitypub/feps.js
@@ -97,34 +97,37 @@ describe('FEPs', () => {
 				assert.strictEqual(activity.object.id, `${nconf.get('url')}/post/${reply1Pid}`);
 			});
 
-			// it('should be called when a post is moved to another topic', async () => {
-			//
-			// });
-		});
+			it('should be called when a post is moved to another topic', async () => {
+				const [{ topicData: topic1 }, { topicData: topic2 }] = await Promise.all([
+					topics.post({
+						uid,
+						cid,
+						title: utils.generateUUID(),
+						content: utils.generateUUID(),
+					}),
+					topics.post({
+						uid,
+						cid,
+						title: utils.generateUUID(),
+						content: utils.generateUUID(),
+					}),
+				]);
 
-		describe('announceObject()', () => {
-			let cid;
-			let uid;
-			let adminUid;
+				assert(topic1 && topic2);
 
-			before(async () => {
-				const name = utils.generateUUID();
-				const description = utils.generateUUID();
-				({ cid } = await categories.create({ name, description }));
+				// Create new reply and move it to topic 2
+				const { pid } = await topics.reply({ uid, tid: topic1.tid, content: utils.generateUUID() });
+				await api.posts.move({ uid: adminUid }, { pid, tid: topic2.tid });
 
-				adminUid = await user.create({ username: utils.generateUUID() });
-				await groups.join('administrators', adminUid);
-				uid = await user.create({ username: utils.generateUUID() });
+				assert.strictEqual(activitypub._sent.size, 1);
+				const activities = Array.from(activitypub._sent.keys()).map(key => activitypub._sent.get(key));
 
-				const { id: followerId, actor } = helpers.mocks.actor();
-				activitypub._cache.set(`0;${followerId}`, actor);
-				user.setCategoryWatchState(followerId, [cid], categories.watchStates.tracking);
-
-				activitypub._sent.clear();
-			});
-
-			afterEach(() => {
-				activitypub._sent.clear();
+				const activity = activities.pop();
+				assert.strictEqual(activity.type, 'Announce');
+				assert(activity.object && activity.object.type);
+				assert.strictEqual(activity.object.type, 'Create');
+				assert(activity.object.object && activity.object.object.type);
+				assert.strictEqual(activity.object.object.type, 'Note');
 			});
 		});
 	});