diff --git a/lib/options.js b/lib/options.js
index b7c6ce0..51d9989 100644
--- a/lib/options.js
+++ b/lib/options.js
@@ -29,7 +29,7 @@ exports.phantom = {
 };
 
 // Options that are just passed to the phantom page object
-exports.phantomPage = ['paperSize', 'customHeaders', 'settings'];
+exports.phantomPage = ['paperSize', 'customHeaders', 'settings', 'zoomFactor'];
 
 // Options that are callbacks for various phantom events
 exports.phantomCallback = ['onAlert', 'onCallback', 'onClosing', 'onConfirm',