diff --git a/src/applications/dashboard/xaction/panel/PhabricatorDashboardTextPanelTextTransaction.php b/src/applications/dashboard/xaction/panel/PhabricatorDashboardTextPanelTextTransaction.php
--- a/src/applications/dashboard/xaction/panel/PhabricatorDashboardTextPanelTextTransaction.php
+++ b/src/applications/dashboard/xaction/panel/PhabricatorDashboardTextPanelTextTransaction.php
@@ -9,4 +9,14 @@
     return 'text';
   }
 
+  public function newRemarkupChanges() {
+    $changes = array();
+
+    $changes[] = $this->newRemarkupChange()
+      ->setOldValue($this->getOldValue())
+      ->setNewValue($this->getNewValue());
+
+    return $changes;
+  }
+
 }