diff --git a/src/components/views/elements/MemberEventListSummary.js b/src/components/views/elements/MemberEventListSummary.js
index 334d461e48..0ecdecb4ee 100644
--- a/src/components/views/elements/MemberEventListSummary.js
+++ b/src/components/views/elements/MemberEventListSummary.js
@@ -184,7 +184,7 @@ module.exports = React.createClass({
if (!fewEvents) {
summary = this._renderSummary(joinEvents, leaveEvents);
toggleButton = (
- {expanded?'collapse':'expand'}
+ {expanded?'collapse':'expand'}
);
let noun = (joinAndLeft === 1 ? 'user' : 'others');