diff --git a/modules/invoicenew.php b/modules/invoicenew.php
index 224cb786e8..8b265251e3 100644
--- a/modules/invoicenew.php
+++ b/modules/invoicenew.php
@@ -601,7 +601,7 @@ function changeContents($contents, $newcontents)
         }
 
         if ($SYSLOG) {
-            $tables = array_merge($tables, array('logmessages', 'logmessagekeys', 'logmessagedata', 'logtransactions'));
+            $tables = array_merge($tables, array('logmessages', 'logmessagekeys', 'logmessagedata', 'logtransactions', 'documentattachments'));
         }
 
         $hook_data = array(