diff --git a/src/components/structures/grouper/LateEventGrouper.ts b/src/components/structures/grouper/LateEventGrouper.ts
index 5e7f0d19de7..67282e608c6 100644
--- a/src/components/structures/grouper/LateEventGrouper.ts
+++ b/src/components/structures/grouper/LateEventGrouper.ts
@@ -25,7 +25,7 @@ interface UnsignedLateEventInfo {
     /**
      * Milliseconds since epoch representing the time the event was received by the server
      */
-    received_at: number;
+    received_ts: number;
     /**
      * An opaque identifier representing the group the server has put the late arriving event into
      */
diff --git a/src/components/views/rooms/EventTile.tsx b/src/components/views/rooms/EventTile.tsx
index 45f42986acf..54d874d785e 100644
--- a/src/components/views/rooms/EventTile.tsx
+++ b/src/components/views/rooms/EventTile.tsx
@@ -1127,7 +1127,7 @@ export class UnwrappedEventTile extends React.Component<EventTileProps, IState>
                 showRelative={this.context.timelineRenderingType === TimelineRenderingType.ThreadsList}
                 showTwelveHour={this.props.isTwelveHour}
                 ts={ts}
-                receivedTs={getLateEventInfo(this.props.mxEvent)?.received_at}
+                receivedTs={getLateEventInfo(this.props.mxEvent)?.received_ts}
             />
         );