diff --git a/dist/sizzle.min.map b/dist/sizzle.min.map
diff --git a/src/sizzle.js b/src/sizzle.js
@@ -33,7 +33,7 @@ var i,
 	contains,
 
 	// Instance-specific data
-	expando = "sizzle" + -(new Date()),
+	expando = "sizzle" + 1 * new Date(),
 	preferredDoc = window.document,
 	dirruns = 0,
 	done = 0,