diff --git a/demo/parse.html b/demo/parse.html
index 3f5a89211..489ef5d29 100644
--- a/demo/parse.html
+++ b/demo/parse.html
@@ -102,7 +102,7 @@ <h3 class="subheader"><strong>Parser</strong> produces the (beautiful) syntax tr
        <p>Syntax node location info (start, end):
        <label><input type="checkbox" id="range">Index-based range</label>
        <label><input type="checkbox" id="loc">Line and column-based</label></p>
-       <label><input type="checkbox" id="comment"> Include comments</label>
+       <label><input type="checkbox" id="comment"> Attach comments</label>
        <label><input type="checkbox" id="tolerant"> Tolerate errors (<a href="https://code.google.com/p/esprima/issues/detail?id=130">experimental</a>)</label></p>
       </div>
 
diff --git a/demo/parse.js b/demo/parse.js
index a26d5ddc5..c6792c686 100644
--- a/demo/parse.js
+++ b/demo/parse.js
@@ -174,7 +174,7 @@ function parse(delay) {
 
         code = window.editor.getText();
         options = {
-            comment: id('comment').checked,
+            attachComment: id('comment').checked,
             range: id('range').checked,
             loc: id('loc').checked,
             tolerant: id('tolerant').checked