diff --git a/src/components/structures/TimelinePanel.js b/src/components/structures/TimelinePanel.js
index 95dc42fcee..d469a41cc8 100644
--- a/src/components/structures/TimelinePanel.js
+++ b/src/components/structures/TimelinePanel.js
@@ -798,6 +798,9 @@ const TimelinePanel = createReactClass({
                 readMarkerVisible: false,
             });
         }
+
+        // Send the updated read marker (along with read receipt) to the server
+        this.sendReadReceipt();
     },