1 files changed, 2 insertions, 2 deletions
diff --git a/lib/caldav/xhr.js b/lib/caldav/xhr.js
index ff4bdd3..4ed7ec6 100644
--- a/lib/caldav/xhr.js
+++ b/lib/caldav/xhr.js
@@ -34,7 +34,7 @@
     }
 
     for (key in options) {
-      if (options.hasOwnProperty(key)) {
+      if (Object.hasOwnProperty.call(options, key)) {
         this[key] = options[key];
       }
     }
@@ -113,7 +113,7 @@
       }
 
       for (header in this.headers) {
-        if (this.headers.hasOwnProperty(header)) {
+        if (Object.hasOwnProperty.call(this.headers, header)) {
           xhr.setRequestHeader(header, this.headers[header]);
         }
       }