diff --git a/init.rb b/init.rb
index 164cd9e..9fb5098 100644
--- a/init.rb
+++ b/init.rb
@@ -25,6 +25,7 @@ Redmine::Plugin.register :redmine_qbo do
   Issue.safe_attributes :estimate_id
   Issue.safe_attributes :invoice_id
   User.safe_attributes :employee_id
+  Issue.safe_attributes :line_items_attributes
   TimeEntry.safe_attributes :billed
   
   # set per_page globally