diff --git a/lib/redmine_qbo_line_items/hooks/view_hook_listener.rb b/lib/redmine_qbo_line_items/hooks/view_hook_listener.rb
index f4fbba9..420860d 100644
--- a/lib/redmine_qbo_line_items/hooks/view_hook_listener.rb
+++ b/lib/redmine_qbo_line_items/hooks/view_hook_listener.rb
@@ -25,6 +25,7 @@ module RedmineQboLineItems
       end
 
       def view_issues_edit_notes_bottom(context = {})
+        return if context[:issue].closed?
         context[:controller].send(:render_to_string, {
           partial: 'line_items/issue_form',
             locals: {