ASP.Net Checkbox conditional Attributes

I have a webform with a checkbox in it. I need to do two things differently based on an environment setting.

1. Add a class

2. Add the Text attribute so a label gets created

                           <% if setting == true) { %>
                           <asp:CheckBox ID="optionCheckbox" class="option-checkbox radio-checkbox" runat="server" Text="Label Text"/>
                           <% } else { %>
                           <asp:CheckBox ID="optionCheckbox" class="option-checkbox" runat="server"/>
                           <% } %>
   
   

The problem with this is the page won't render because the ids are the same, even though only one could ever get rendered. There is a lot of other processing with javascript and such so I don't want different ids for each scenario.