diff --git a/velocity.js b/velocity.js
index 60565181..ff018c78 100644
--- a/velocity.js
+++ b/velocity.js
@@ -498,7 +498,7 @@
 		var performance = (function() {
 			var perf = window.performance || {};
 
-			if (!perf.hasOwnProperty("now")) {
+			if (!Object.prototype.hasOwnProperty.call(perf, "now")) {
 				var nowOffset = perf.timing && perf.timing.domComplete ? perf.timing.domComplete : (new Date()).getTime();
 
 				perf.now = function() {