diff --git a/src/activitypub/actors.js b/src/activitypub/actors.js
index 370fb70c31..594e4e5da8 100644
--- a/src/activitypub/actors.js
+++ b/src/activitypub/actors.js
@@ -47,7 +47,6 @@ Actors.assert = async (ids, options = {}) => {
 	ids = ids.filter(id => !utils.isNumber(id));
 
 	// Translate webfinger handles to uris
-	const hostMap = new Map();
 	ids = (await Promise.all(ids.map(async (id) => {
 		const originalId = id;
 		if (activitypub.helpers.isWebfinger(id)) {
@@ -57,7 +56,6 @@ Actors.assert = async (ids, options = {}) => {
 			}
 
 			({ actorUri: id } = await activitypub.helpers.query(id));
-			hostMap.set(id, host);
 		}
 		// ensure the final id is a valid URI
 		if (!id || !activitypub.helpers.isUri(id)) {
@@ -163,7 +161,7 @@ Actors.assert = async (ids, options = {}) => {
 	actors = actors.filter(Boolean); // remove unresolvable actors
 
 	// Build userData object for storage
-	const profiles = (await activitypub.mocks.profile(actors, hostMap)).filter(Boolean);
+	const profiles = (await activitypub.mocks.profile(actors)).filter(Boolean);
 	const now = Date.now();
 
 	const bulkSet = profiles.reduce((memo, profile) => {
diff --git a/src/activitypub/mocks.js b/src/activitypub/mocks.js
index 3e05aa413d..7726768016 100644
--- a/src/activitypub/mocks.js
+++ b/src/activitypub/mocks.js
@@ -129,7 +129,7 @@ Mocks._normalize = async (object) => {
 	};
 };
 
-Mocks.profile = async (actors, hostMap) => {
+Mocks.profile = async (actors) => {
 	// Should only ever be called by activitypub.actors.assert
 	const profiles = await Promise.all(actors.map(async (actor) => {
 		if (!actor) {
@@ -137,7 +137,7 @@ Mocks.profile = async (actors, hostMap) => {
 		}
 
 		const uid = actor.id;
-		let hostname = hostMap.get(uid);
+		let hostname;
 		let {
 			url, preferredUsername, published, icon, image,
 			name, summary, followers, inbox, endpoints, tag,
@@ -145,12 +145,10 @@ Mocks.profile = async (actors, hostMap) => {
 		preferredUsername = slugify(preferredUsername || name);
 		const { followers: followerCount, following: followingCount } = await activitypub.actors.getLocalFollowCounts(uid);
 
-		if (!hostname) { // if not available via webfinger, infer from id
-			try {
-				({ hostname } = new URL(actor.id));
-			} catch (e) {
-				return null;
-			}
+		try {
+			({ hostname } = new URL(actor.id));
+		} catch (e) {
+			return null;
 		}
 
 		let picture;