diff --git a/src/infrastructure/markup/PhabricatorMarkupEngine.php b/src/infrastructure/markup/PhabricatorMarkupEngine.php
--- a/src/infrastructure/markup/PhabricatorMarkupEngine.php
+++ b/src/infrastructure/markup/PhabricatorMarkupEngine.php
@@ -42,7 +42,7 @@
   private $objects = array();
   private $viewer;
   private $contextObject;
-  private $version = 17;
+  private $version = 18;
   private $engineCaches = array();
   private $auxiliaryConfig = array();