diff --git a/app/javascript/mastodon/containers/status_container.js b/app/javascript/mastodon/containers/status_container.js
index 86324b846..fa58589a6 100644
--- a/app/javascript/mastodon/containers/status_container.js
+++ b/app/javascript/mastodon/containers/status_container.js
@@ -77,7 +77,7 @@ const mapDispatchToProps = (dispatch, { intl }) => ({
   },
 
   onReblog (status, e) {
-    if (e.shiftKey || !boostModal) {
+    if ((e && e.shiftKey) || !boostModal) {
       this.onModalReblog(status);
     } else {
       dispatch(openModal('BOOST', { status, onReblog: this.onModalReblog }));