diff --git a/README.md b/README.md
index 416f42b..589bf68 100644
--- a/README.md
+++ b/README.md
@@ -578,10 +578,9 @@ task can be used to purge expired session data on a regular basis. The date of
 expiry can be customised, and is given a default of 7 days to delete sessions 
 after their creation.
 
-You can run the task from the URL, by using http://mysite.com/MultiFormPurgeTask/run
+You can run the task from the URL, by using http://mysite.com/dev/tasks/MultiFormPurgeTask?flush=1
 
-MultiFormPurgeTask is a subclass of *DailyTask*, so can be used alongside the 
-cli-script.php automated  tasks which are included with SilverStripe.
+MultiFormPurgeTask is a subclass of *BuildTask*, so can be , so can be run using the [SilverStripe CLI tools](http://doc.silverstripe.org/framework/en/topics/commandline).
 
 One way of automatically running this on a UNIX based machine is by cron.
 
diff --git a/code/tasks/MultiFormPurgeTask.php b/code/tasks/MultiFormPurgeTask.php
index e9de36f..4d223f0 100644
--- a/code/tasks/MultiFormPurgeTask.php
+++ b/code/tasks/MultiFormPurgeTask.php
@@ -12,7 +12,7 @@
  * 
  * @package multiform
  */
-class MultiFormPurgeTask extends DailyTask {
+class MultiFormPurgeTask extends BuildTask {
 	
 	/**
 	 * Days after which sessions expire and
@@ -29,7 +29,7 @@ class MultiFormPurgeTask extends DailyTask {
 	 * are older than the days specified in $session_expiry_days
 	 * and delete them.
 	 */
-	public function process() {
+	public function run($request) {
 		$sessions = $this->getExpiredSessions();
 		$delCount = 0;
 		if($sessions) foreach($sessions as $session) {