diff --git a/init.rb b/init.rb
index e0ee8d9..0c44e58 100644
--- a/init.rb
+++ b/init.rb
@@ -35,6 +35,7 @@ Redmine::Plugin.register :redmine_qbo do
     Issue.safe_attributes 'qbo_item_id'
     Issue.safe_attributes 'qbo_estimate_id'
     Issue.safe_attributes 'qbo_invoice_id'
+    Issue.safe_attributes 'vehicle_id'
     User.safe_attributes 'qbo_employee_id'
     TimeEntry.safe_attributes 'qbo_billed'