diff --git a/contactform.php b/contactform.php
index 5611496..be1dd9e 100644
--- a/contactform.php
+++ b/contactform.php
@@ -331,7 +331,7 @@ public function getTemplateVarContact()
             $contacts[$one_contact['id_contact']] = $one_contact;
         }
 
-        if (isset($this->customer_thread['id_contact'])) {
+        if (isset($this->customer_thread['id_contact']) && $this->customer_thread['id_contact'] != 0) {
             return [
                 $contacts[$this->customer_thread['id_contact']],
             ];