diff --git a/website/templates/pages/demo/content.handlebars b/website/templates/pages/demo/content.handlebars
index 813b9b1..56772d0 100644
--- a/website/templates/pages/demo/content.handlebars
+++ b/website/templates/pages/demo/content.handlebars
@@ -49,6 +49,12 @@
             checked />
         </label>
       </div>
+      <div class="column is-one-fifth-widescreen">
+        <label title="Show/Hide white spaces (only in side-by-side view)">
+          <p>Ignore white spaces(side-by-side only)</p>
+          <input class="options-label-value" id="diff-url-options-ignore-w-spaces" type="checkbox" name="drawFileList"/>
+        </label>
+      </div>
       <div class="column is-one-fifth-widescreen">
         <label title="Level of matching for the comparison algorithm">
           <p>Matching Type</p>