diff --git a/src/components/views/rooms/EntityTile.js b/src/components/views/rooms/EntityTile.js
index 61ad43e9c4..a525f9ac24 100644
--- a/src/components/views/rooms/EntityTile.js
+++ b/src/components/views/rooms/EntityTile.js
@@ -38,6 +38,7 @@ module.exports = React.createClass({
         className: React.PropTypes.string,
         presenceState: React.PropTypes.string,
         presenceActiveAgo: React.PropTypes.number,
+        currentlyActive: React.PropTypes.bool,
         showInviteButton: React.PropTypes.bool,
         shouldComponentUpdate: React.PropTypes.func,
         onClick: React.PropTypes.func,
diff --git a/src/components/views/rooms/PresenceLabel.js b/src/components/views/rooms/PresenceLabel.js
index f3315de80c..ac0410c1f7 100644
--- a/src/components/views/rooms/PresenceLabel.js
+++ b/src/components/views/rooms/PresenceLabel.js
@@ -25,7 +25,15 @@ module.exports = React.createClass({
     displayName: 'PresenceLabel',
 
     propTypes: {
+        // number of milliseconds ago this user was last active.
+        // zero = unknown
         activeAgo: React.PropTypes.number,
+
+        // if true, activeAgo is an approximation and "Now" should
+        // be shown instead
+        currentlyActive: React.PropTypes.bool,
+
+        // offline, online, etc
         presenceState: React.PropTypes.string
     },