diff --git a/lib/attachmentlist.php b/lib/attachmentlist.php
index 0d56791d70..7e536925bf 100644
--- a/lib/attachmentlist.php
+++ b/lib/attachmentlist.php
@@ -452,4 +452,9 @@ class Attachment extends AttachmentListItem
 
         return $scrubbed;
     }
+
+    function showFallback()
+    {
+        // still needed: should show a link?
+    }
 }