diff --git a/doc/index.md b/doc/index.md
index c607d89..40828bc 100644
--- a/doc/index.md
+++ b/doc/index.md
@@ -94,6 +94,7 @@ instance, or the system browser.
     - __hidden__: set to `yes` to create the browser and load the page, but not show it. The loadstop event fires when loading is complete. Omit or set to `no` (default) to have the browser open and load normally.
     - __clearcache__: set to `yes` to have the browser's cookie cache cleared before the new window is opened
     - __clearsessioncache__: set to `yes` to have the session cookie cache cleared before the new window is opened
+    - __zoom__: set to `yes` to show Android browser's zoom controls, set to `no` to hide them.  Default value is `yes`.
     - __hardwareback__: set to `yes` to use the hardware back button to navigate backwards through the `InAppBrowser`'s history. If there is no previous page, the `InAppBrowser` will close.  The default value is `yes`, so you must set it to `no` if you want the back button to simply close the InAppBrowser.
 
     iOS only: