diff --git a/code/SecurityAdmin.php b/code/SecurityAdmin.php
index 65af12f6..27fc1e6c 100644
--- a/code/SecurityAdmin.php
+++ b/code/SecurityAdmin.php
@@ -65,7 +65,7 @@ class SecurityAdmin extends LeftAndMain implements PermissionProvider {
 
 
 	public function AddRecordForm() {
-		$m = new MemberTableField(
+		$m = Object::create('MemberTableField',
 			$this,
 			"Members",
 			$this->currentPageID()