diff --git a/_config.php b/_config.php
index 15c5adc..c772bab 100644
--- a/_config.php
+++ b/_config.php
@@ -1,3 +1,18 @@
 <?php
 
-?>
\ No newline at end of file
+/**
+ * Default configuration settings for the Spam Protection module.
+ *
+ * You should not put your own configuration in here rather use your
+ * mysite/_config.php file
+ *
+ * @package spamprotection
+ */
+
+if(class_exists('Comment')) {
+	/**
+	 * If the comments module is installed then add the spam protection module 
+	 * to the comments form via this extension
+	 */
+	Object::add_extension('CommentingController', 'CommentSpamProtection');
+}
\ No newline at end of file
diff --git a/code/extensions/CommentSpamProtection.php b/code/extensions/CommentSpamProtection.php
new file mode 100644
index 0000000..a2225ce
--- /dev/null
+++ b/code/extensions/CommentSpamProtection.php
@@ -0,0 +1,23 @@
+<?php 
+
+/**
+ * Apply the spam protection to the comments module if it is installed
+ *
+ * @package spamprotection
+ */
+
+class CommentSpamProtection extends Extension {
+
+	/**
+	 * Disable the AJAX commenting and update the form
+	 * with the {@link SpamProtectorField} which is enabled
+	 */
+	function alterCommentForm(&$form) {
+		SpamProtectorManager::update_form($form, null, array(
+			'Name' => 'author_name', 
+			'CommenterURL' => 'author_url', 
+			'Comment' => 'post_body', 
+			'Email' => 'author_email'
+		));
+	}
+}
\ No newline at end of file