diff --git a/src/lib/features.js b/src/lib/features.js
index 5993594d..e6d3898e 100644
--- a/src/lib/features.js
+++ b/src/lib/features.js
@@ -369,8 +369,8 @@ var featureInfos =
         check:
         function ()
         {
-            var available = typeof document.forms === 'object' &&
-            document.forms + '' === '[object HTMLCollection]';
+            var available =
+            typeof document === 'object' && document.forms + '' === '[object HTMLCollection]';
             return available;
         },
         includes:   ['ANY_DOCUMENT'],