diff --git a/src/DI.php b/src/DI.php
index e259c271a0..06397d0e23 100644
--- a/src/DI.php
+++ b/src/DI.php
@@ -239,6 +239,14 @@ abstract class DI
 		return self::$dice->create(Factory\Api\Mastodon\Account::class);
 	}
 
+	/**
+	 * @return Factory\Api\Mastodon\Attachment
+	 */
+	public static function mstdnAttachment()
+	{
+		return self::$dice->create(Factory\Api\Mastodon\Attachment::class);
+	}
+
 	/**
 	 * @return Factory\Api\Mastodon\Emoji
 	 */