diff --git a/resources/skins.citizen.scripts/skin.js b/resources/skins.citizen.scripts/skin.js
index 26a07440..df24af1a 100644
--- a/resources/skins.citizen.scripts/skin.js
+++ b/resources/skins.citizen.scripts/skin.js
@@ -36,6 +36,7 @@ function enableCssAnimations( document ) {
 }
 
 /**
+ * @param {Window} window
  * @return {void}
  */
 function main( window ) {