diff --git a/include/conversation.php b/include/conversation.php
index 56446d96df..9468832db8 100644
--- a/include/conversation.php
+++ b/include/conversation.php
@@ -518,10 +518,10 @@ function prepare_threads_body($a, $items, $cmnt_tpl, $page_writeable, $mode, $pr
 
 						if($commentww != 'ww') {
 							// We found no matching contact in the database, just do the best we can (we'll only miss the photo)
-							$this->owner_url = zrl($matches[0][1]);
-							$this->owner_name = $matches[0][2];
+							$owner_url = zrl($matches[0][1]);
+							$owner_name = $matches[0][2];
 							// Use the nosign
-							$this->owner_photo = $a->get_baseurl .'/images/nosign.jpg';
+							$owner_photo = $a->get_baseurl .'/images/nosign.jpg';
 						}
 					}
 				}