diff --git a/source/_partials/pages/book/signup-form.html.twig b/source/_partials/pages/book/signup-form.html.twig
new file mode 100644
index 00000000..31fef018
--- /dev/null
+++ b/source/_partials/pages/book/signup-form.html.twig
@@ -0,0 +1,21 @@
+<div id="mc_embed_signup">
+    <form action="{{ page.mailchimp_url }}" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate p-0" target="_blank" novalidate>
+        <div id="mc_embed_signup_scroll">
+            <div class="mc-field-group w-full lg:w-1/2 pb-3 font-bold">
+                <label for="mce-EMAIL">Email Address <span class="asterisk">*</span>
+                </label>
+                <input type="email" value="" name="EMAIL" class="required email block w-full border border-grey p-3" id="mce-EMAIL" style="text-indent: 0">
+            </div>
+            <div id="mce-responses" class="clear p-0 m-0">
+                <div class="response p-0" id="mce-error-response" style="display: none"></div>
+                <div class="response p-0" id="mce-success-response" style="display: none"></div>
+            </div>
+            <div style="position: absolute; left: -5000px;" aria-hidden="true"><input type="text" name="b_b4ac8dd177796d37b93f9c285_033c84e0d5" tabindex="-1" value=""></div>
+            <div class="clear"><button type="submit" value="Subscribe" name="subscribe" id="mc-embedded-subscribe" class="bg-blue text-white border-0 px-4 py-3 m-0">Subscribe</button>
+            </div>
+        </div>
+    </form>
+</div>
+
+<link href="//cdn-images.mailchimp.com/embedcode/classic-10_7.css" rel="stylesheet" type="text/css">
+<script type='text/javascript' src='//s3.amazonaws.com/downloads.mailchimp.com/js/mc-validate.js'></script><script type='text/javascript'>(function($) {window.fnames = new Array(); window.ftypes = new Array();fnames[0]='EMAIL';ftypes[0]='email';fnames[1]='FNAME';ftypes[1]='text';}(jQuery));var $mcj = jQuery.noConflict(true);</script>
diff --git a/source/test-driven-drupal.md b/source/test-driven-drupal.md
index 7d90d3ce..8bf49854 100644
--- a/source/test-driven-drupal.md
+++ b/source/test-driven-drupal.md
@@ -42,26 +42,7 @@ If you have questions or would like to suggest something for me to include in th
 Enter your email address to subscribe to the Test Driven Drupal mailing list.
 </div>
 
-<div id="mc_embed_signup">
-    <form action="{{ page.mailchimp_url }}" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate p-0" target="_blank" novalidate>
-        <div id="mc_embed_signup_scroll">
-            <div class="mc-field-group w-full lg:w-1/2 pb-3 font-bold">
-                <label for="mce-EMAIL">Email Address <span class="asterisk">*</span>
-                </label>
-                <input type="email" value="" name="EMAIL" class="required email block w-full border border-grey p-3" id="mce-EMAIL" style="text-indent: 0">
-            </div>
-            <div id="mce-responses" class="clear p-0 m-0">
-                <div class="response p-0" id="mce-error-response" style="display: none"></div>
-                <div class="response p-0" id="mce-success-response" style="display: none"></div>
-            </div>
-            <div style="position: absolute; left: -5000px;" aria-hidden="true"><input type="text" name="b_b4ac8dd177796d37b93f9c285_033c84e0d5" tabindex="-1" value=""></div>
-            <div class="clear"><button type="submit" value="Subscribe" name="subscribe" id="mc-embedded-subscribe" class="bg-blue text-white border-0 px-4 py-3 m-0">Subscribe</button>
-            </div>
-        </div>
-    </form>
-</div>
-<link href="//cdn-images.mailchimp.com/embedcode/classic-10_7.css" rel="stylesheet" type="text/css">
-<script type='text/javascript' src='//s3.amazonaws.com/downloads.mailchimp.com/js/mc-validate.js'></script><script type='text/javascript'>(function($) {window.fnames = new Array(); window.ftypes = new Array();fnames[0]='EMAIL';ftypes[0]='email';fnames[1]='FNAME';ftypes[1]='text';}(jQuery));var $mcj = jQuery.noConflict(true);</script>
+{% include 'pages/book/signup-form' %}
 
 [0]: {{site.url}}/blog/tags/testing
 [1]: {{site.url}}/talks/tdd-test-driven-drupal