diff --git a/lib/utils.js b/lib/utils.js
index 6a02a0b..aef5fa1 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -217,7 +217,7 @@ function forEach(obj, fn) {
   } else {
     // Iterate over object keys
     for (var key in obj) {
-      if (Object.hasOwnProperty.call(obj, key)) {
+      if (Object.prototype.hasOwnProperty.call(obj, key)) {
         fn.call(null, obj[key], key, obj);
       }
     }