diff --git a/include/class.thread.php b/include/class.thread.php
index 35bd5a2849cc7e23a995664ad8e19976a27fa59d..fbe50bc87cdfaf94447b1167837041d65aa53574 100644
--- a/include/class.thread.php
+++ b/include/class.thread.php
@@ -973,7 +973,7 @@ Class ThreadEntry {
                 foreach ($vars['attachments'] as $i=>$a) {
                     if (@$a['cid'] && $a['cid'] == $cid) {
                         // Inline referenced attachment was stripped
-                        unset($vars['attachments']);
+                        unset($vars['attachments'][$i]);
                     }
                 }
             }