diff --git a/docs/views/examples/branching/index.html b/docs/views/examples/branching/index.html
index 5f8d3c5935..cb90a67655 100644
--- a/docs/views/examples/branching/index.html
+++ b/docs/views/examples/branching/index.html
@@ -45,7 +45,7 @@ <h2 class="govuk-fieldset__heading">
               </label>
             </div>
             <div class="govuk-radios__item">
-              <input class="govuk-radios__input" id="over18-no" name="over-18" type="radio" value="false">
+              <input class="govuk-radios__input" id="over-18-no" name="over-18" type="radio" value="false">
               <label class="govuk-label govuk-radios__label" for="over-18-no">
                 No
               </label>