diff --git a/app/soapbox/__fixtures__/mastodon-account.json b/app/soapbox/__fixtures__/mastodon-account.json
new file mode 100644
index 0000000000..7a00340bf5
--- /dev/null
+++ b/app/soapbox/__fixtures__/mastodon-account.json
@@ -0,0 +1,23 @@
+{
+  "id": "106801667066418367",
+  "username": "benis911",
+  "acct": "benis911",
+  "display_name": "",
+  "locked": false,
+  "bot": false,
+  "discoverable": null,
+  "group": false,
+  "created_at": "2021-08-22T00:00:00.000Z",
+  "note": "",
+  "url": "https://mastodon.social/@benis911",
+  "avatar": "https://mastodon.social/avatars/original/missing.png",
+  "avatar_static": "https://mastodon.social/avatars/original/missing.png",
+  "header": "https://mastodon.social/headers/original/missing.png",
+  "header_static": "https://mastodon.social/headers/original/missing.png",
+  "followers_count": 1,
+  "following_count": 0,
+  "statuses_count": 5,
+  "last_status_at": "2022-02-23",
+  "emojis": [],
+  "fields": []
+}
diff --git a/app/soapbox/normalizers/__tests__/account-test.js b/app/soapbox/normalizers/__tests__/account-test.js
index cbe45419f3..8d12a935d0 100644
Binary files a/app/soapbox/normalizers/__tests__/account-test.js and b/app/soapbox/normalizers/__tests__/account-test.js differ
diff --git a/app/soapbox/normalizers/account.ts b/app/soapbox/normalizers/account.ts
index a96c9ad2d0..1c536ee4ab 100644
--- a/app/soapbox/normalizers/account.ts
+++ b/app/soapbox/normalizers/account.ts
@@ -14,6 +14,7 @@ import {
 import emojify from 'soapbox/features/emoji/emoji';
 import { normalizeEmoji } from 'soapbox/normalizers/emoji';
 import { IAccount } from 'soapbox/types';
+import { acctFull } from 'soapbox/utils/accounts';
 import { unescapeHTML } from 'soapbox/utils/html';
 import { mergeDefined, makeEmojiMap } from 'soapbox/utils/normalizers';
 
@@ -195,6 +196,10 @@ const addInternalFields = (account: ImmutableMap<string, any>) => {
   });
 };
 
+const normalizeFqn = (account: ImmutableMap<string, any>) => {
+  return account.set('fqn', acctFull(account));
+};
+
 export const normalizeAccount = (account: Record<string, any>): IAccount => {
   return AccountRecord(
     ImmutableMap(fromJS(account)).withMutations(account => {
@@ -206,6 +211,7 @@ export const normalizeAccount = (account: Record<string, any>): IAccount => {
       normalizeVerified(account);
       normalizeBirthday(account);
       normalizeLocation(account);
+      normalizeFqn(account);
       fixUsername(account);
       fixDisplayName(account);
       addInternalFields(account);
diff --git a/app/soapbox/utils/accounts.ts b/app/soapbox/utils/accounts.ts
index e93138c868..a97f763389 100644
--- a/app/soapbox/utils/accounts.ts
+++ b/app/soapbox/utils/accounts.ts
@@ -10,14 +10,14 @@ const getDomainFromURL = (account: ImmutableMap<string, any>): string => {
 };
 
 export const getDomain = (account: ImmutableMap<string, any>): string => {
-  const domain = account.get('acct').split('@')[1];
+  const domain = account.get('acct', '').split('@')[1];
   return domain ? domain : getDomainFromURL(account);
 };
 
 export const guessFqn = (account: ImmutableMap<string, any>): string => {
-  const [user, domain] = account.get('acct').split('@');
+  const [user, domain] = account.get('acct', '').split('@');
   if (!domain) return [user, getDomainFromURL(account)].join('@');
-  return account.get('acct');
+  return account.get('acct', '');
 };
 
 export const getBaseURL = (account: ImmutableMap<string, any>): string => {
@@ -31,7 +31,7 @@ export const getBaseURL = (account: ImmutableMap<string, any>): string => {
 
 // user@domain even for local users
 export const acctFull = (account: ImmutableMap<string, any>): string => (
-  account.get('fqn') || guessFqn(account)
+  account.get('fqn') || guessFqn(account) || ''
 );
 
 export const getAcct = (account: ImmutableMap<string, any>, displayFqn: boolean): string => (