diff --git a/app/javascript/mastodon/reducers/compose.js b/app/javascript/mastodon/reducers/compose.js
index e4601e471..ad384bd0b 100644
--- a/app/javascript/mastodon/reducers/compose.js
+++ b/app/javascript/mastodon/reducers/compose.js
@@ -452,6 +452,7 @@ export default function compose(state = initialState, action) {
       map.set('idempotencyKey', uuid());
       map.set('sensitive', action.status.get('sensitive'));
       map.set('language', action.status.get('language'));
+      map.set('id', null);
 
       if (action.status.get('spoiler_text').length > 0) {
         map.set('spoiler', true);