diff --git a/views/bootstrap/class.ViewDocument.php b/views/bootstrap/class.ViewDocument.php
index b08e0aabc..37285a668 100644
--- a/views/bootstrap/class.ViewDocument.php
+++ b/views/bootstrap/class.ViewDocument.php
@@ -603,8 +603,10 @@ $(document).ready( function() {
 					break;
 				default:
 					$txt = $this->callHook('additionalDocumentPreview', $latestContent);
-					if(is_string($txt))
+					if(is_string($txt)) {
+						$this->contentHeading(getMLText("preview"));
 						echo $txt;
+					}
 					break;
 				}
 			}