diff --git a/template.php b/template.php
index 7a6c6cf..d927b74 100644
--- a/template.php
+++ b/template.php
@@ -433,6 +433,8 @@ function zen_preprocess_node(&$vars, $hook) {
     case NODE_BUILD_PRINT:
       $vars['build_mode'] = 'print';
       break;
+    default:
+      $vars['build_mode'] = $vars['node']->build_mode;
   }
 
   // Create the user_picture variable.
@@ -466,6 +468,7 @@ function zen_preprocess_node(&$vars, $hook) {
   if (isset($vars['preview'])) {
     $vars['classes_array'][] = 'node-preview';
   }
+  $vars['classes_array'][] = 'build-mode-' . $vars['build_mode'] ;
 }
 
 /**