diff --git a/htdocs/core/class/html.formticket.class.php b/htdocs/core/class/html.formticket.class.php
index 72673abb323..60574d12d3c 100644
--- a/htdocs/core/class/html.formticket.class.php
+++ b/htdocs/core/class/html.formticket.class.php
@@ -991,7 +991,7 @@ class FormTicket
 
         // MESSAGE
         $defaultmessage="";
-	if ($arraydefaultmessage && $arraydefaultmessage->content) $defaultmessage = $arraydefaultmessage->content;
+		if (is_object($arraydefaultmessage) && $arraydefaultmessage->content) $defaultmessage = $arraydefaultmessage->content;
         $defaultmessage=str_replace('\n', "\n", $defaultmessage);
 
         // Deal with format differences between message and signature (text / HTML)