diff --git a/techniques/aria/ARIA21.html b/techniques/aria/ARIA21.html
index 52d0cc5bb2..44b24b6deb 100644
--- a/techniques/aria/ARIA21.html
+++ b/techniques/aria/ARIA21.html
@@ -52,7 +52,7 @@ <h3>Using aria-invalid on required fields</h3>
   &lt;/div&gt;
   &lt;div&gt;
     &lt;label for="email"&gt;Email (required)&lt;/label&gt;
-    &lt;input type="text" name="email" id="email"&gt;
+    &lt;input type="email" name="email" id="email"&gt;
   &lt;/div&gt;
   &lt;div&gt;
     &lt;input type="submit" name="button" id="button" value="Submit"&gt;
@@ -69,7 +69,7 @@ <h3>Identifying errors in data format</h3>
 <pre xml:space="preserve"><code class="language-html">&lt;div class="control"&gt;
   &lt;div&gt;
     &lt;label for="email"&gt;Email address: [*]&lt;/label&gt; 
-    &lt;input type="text" name="email" id="email" class="error"
+    &lt;input type="email" name="email" id="email" class="error"
      aria-invalid="true" aria-describedBy="err_1"&gt;
   &lt;/div&gt;
   &lt;span class="errtext" id="err_1"&gt;Error: Incorrect data&lt;/span&gt;
@@ -78,7 +78,7 @@ <h3>Identifying errors in data format</h3>
 
 <pre xml:space="preserve"><code class="language-html">&lt;div class="control"&gt;
   &lt;div&gt;&lt;label for="email"&gt;Email address: [*]&lt;/label&gt; 
-    &lt;input type="text" name="email" id="email" class="error"
+    &lt;input type="email" name="email" id="email" class="error"
      aria-invalid="true" aria-describedBy="err_2"&gt;
   &lt;/div&gt;
   &lt;span class="errtext" id="err_2"&gt;Error: Input data missing&lt;/span&gt;
@@ -139,4 +139,4 @@ <h3>Identifying errors in data format</h3>
          </ul>
       
    </section>
-</body></html>
\ No newline at end of file
+</body></html>