diff --git a/jetpack-photon-for-nextgen.php b/jetpack-photon-for-nextgen.php
index b66bb19cbc514734bf65d620f6f16b7b9cfa4154..24f76428f17dab41e8bf528353ca779d12145814 100644
--- a/jetpack-photon-for-nextgen.php
+++ b/jetpack-photon-for-nextgen.php
@@ -41,6 +41,7 @@ class Jetpack_Photon_for_NextGEN {
 	/**
 	 * Singleton implementation
 	 *
+	 * @uses this::setup
 	 * @return object
 	 */
 	public static function instance() {