diff --git a/app/soapbox/components/poll.js b/app/soapbox/components/poll.js
index d3ed22942..57d693003 100644
--- a/app/soapbox/components/poll.js
+++ b/app/soapbox/components/poll.js
@@ -105,7 +105,7 @@ class Poll extends ImmutablePureComponent {
     const percent = poll.get('votes_count') === 0 ? 0 : (option.get('votes_count') / poll.get('votes_count')) * 100;
     const leading = poll.get('options').filterNot(other => other.get('title') === option.get('title')).every(other => option.get('votes_count') >= other.get('votes_count'));
     const active  = !!this.state.selected[`${optionIndex}`];
-    const voted   = option.get('voted') || (poll.get('own_votes') && poll.get('own_votes').includes(optionIndex));
+    const voted   = poll.own_votes?.includes(optionIndex);
 
     let titleEmojified = option.get('title_emojified');
     if (!titleEmojified) {
@@ -156,7 +156,7 @@ class Poll extends ImmutablePureComponent {
   }
 
   render() {
-    const { me, poll, intl } = this.props;
+    const { poll, intl } = this.props;
 
     if (!poll) {
       return null;
@@ -165,7 +165,7 @@ class Poll extends ImmutablePureComponent {
     const timeRemaining = poll.get('expired') ? intl.formatMessage(messages.closed) : <RelativeTimestamp timestamp={poll.get('expires_at')} futureDate />;
     const showResults   = poll.get('voted') || poll.get('expired');
     const disabled      = this.props.disabled || Object.entries(this.state.selected).every(item => !item);
-    const voted         = me && poll.get('own_votes').size > 0;
+    const voted         = poll.voted;
 
     return (
       <div className={classNames('poll', { voted })}>
diff --git a/app/soapbox/normalizers/__tests__/status-test.js b/app/soapbox/normalizers/__tests__/status-test.js
index 54117e167..f3c836f23 100644
--- a/app/soapbox/normalizers/__tests__/status-test.js
+++ b/app/soapbox/normalizers/__tests__/status-test.js
@@ -147,7 +147,7 @@ describe('normalizeStatus', () => {
       multiple: false,
       voters_count: 0,
       votes_count: 0,
-      own_votes: [],
+      own_votes: null,
       voted: false,
     };
 
@@ -163,6 +163,6 @@ describe('normalizeStatus', () => {
 
     // Adds logged-in fields
     expect(result.poll.voted).toBe(false);
-    expect(result.poll.own_votes).toEqual(fromJS([]));
+    expect(result.poll.own_votes).toBe(null);
   });
 });
diff --git a/app/soapbox/normalizers/status.ts b/app/soapbox/normalizers/status.ts
index 71210c502..727206265 100644
--- a/app/soapbox/normalizers/status.ts
+++ b/app/soapbox/normalizers/status.ts
@@ -57,11 +57,12 @@ const PollRecord = ImmutableRecord({
   emojis: ImmutableList(),
   expired: false,
   expires_at: new Date(),
+  id: '',
   multiple: false,
   options: ImmutableList(),
   voters_count: 0,
   votes_count: 0,
-  own_votes: ImmutableList(),
+  own_votes: null,
   voted: false,
 });
 
@@ -106,14 +107,42 @@ const normalizeMentions = (status: ImmutableMap<string, any>) => {
   });
 };
 
-// Normalize poll
-const normalizePoll = (status: ImmutableMap<string, any>) => {
+// Normalize poll options
+const normalizePollOptions = (poll: ImmutableMap<string, any>) => {
+  return poll.update('options', (options: ImmutableList<ImmutableMap<string, any>>) => {
+    return options.map(PollOptionRecord);
+  });
+};
+
+// Normalize own_votes to `null` if empty (like Mastodon)
+const normalizePollOwnVotes = (poll: ImmutableMap<string, any>) => {
+  return poll.update('own_votes', ownVotes => {
+    return ownVotes?.size > 0 ? ownVotes : null;
+  });
+};
+
+// Whether the user voted in the poll
+const normalizePollVoted = (poll: ImmutableMap<string, any>) => {
+  return poll.update('voted', voted => {
+    return typeof voted === 'boolean' ? voted : poll.get('own_votes')?.size > 0;
+  });
+};
+
+// Normalize the actual poll
+const normalizePoll = (poll: ImmutableMap<string, any>) => {
+  return PollRecord(
+    poll.withMutations((poll: ImmutableMap<string, any>) => {
+      normalizePollOptions(poll);
+      normalizePollOwnVotes(poll);
+      normalizePollVoted(poll);
+    }),
+  );
+};
+
+// Normalize the poll in the status, if applicable
+const normalizeStatusPoll = (status: ImmutableMap<string, any>) => {
   if (status.hasIn(['poll', 'options'])) {
-    return status.update('poll', ImmutableMap(), poll => {
-      return PollRecord(poll).update('options', (options: ImmutableList<ImmutableMap<string, any>>) => {
-        return options.map(PollOptionRecord);
-      });
-    });
+    return status.update('poll', ImmutableMap(), normalizePoll);
   } else {
     return status.set('poll', null);
   }
@@ -161,12 +190,12 @@ const fixQuote = (status: ImmutableMap<string, any>) => {
   });
 };
 
-export const normalizeStatus = (status: ImmutableMap<any, string>): IStatus => {
+export const normalizeStatus = (status: ImmutableMap<string, any>): IStatus => {
   return StatusRecord(
     status.withMutations(status => {
       normalizeAttachments(status);
       normalizeMentions(status);
-      normalizePoll(status);
+      normalizeStatusPoll(status);
       fixMentionsOrder(status);
       addSelfMention(status);
       fixQuote(status);
diff --git a/app/soapbox/reducers/__tests__/polls-test.js b/app/soapbox/reducers/__tests__/polls-test.js
index c3ecd5152..b19ad858c 100644
--- a/app/soapbox/reducers/__tests__/polls-test.js
+++ b/app/soapbox/reducers/__tests__/polls-test.js
@@ -24,7 +24,7 @@ describe('polls reducer', () => {
           multiple: false,
           voters_count: 0,
           votes_count: 0,
-          own_votes: [],
+          own_votes: null,
           voted: false,
         },
       };