diff --git a/app/Models/InvoiceInvitation.php b/app/Models/InvoiceInvitation.php
index c23e35318fa7..b32d0f3f9e99 100644
--- a/app/Models/InvoiceInvitation.php
+++ b/app/Models/InvoiceInvitation.php
@@ -24,7 +24,7 @@ class InvoiceInvitation extends BaseModel {
 	use Inviteable;
 
 	protected $fillable = [
-		//'id',
+		'key',
 		//'client_contact_id',
 	];