diff --git a/lib/OpenLayers/Control/Navigation.js b/lib/OpenLayers/Control/Navigation.js
index ae61145291..946f1f96f2 100644
--- a/lib/OpenLayers/Control/Navigation.js
+++ b/lib/OpenLayers/Control/Navigation.js
@@ -94,7 +94,7 @@ OpenLayers.Control.Navigation = OpenLayers.Class(OpenLayers.Control, {
      *    You should probably set handleRightClicks to true if you use this
      *    with MOD_CTRL, to disable the context menu for machines which use
      *    CTRL-Click as a right click.
-     * Default: <OpenLayers.Handler.MOD_SHIFT
+     * Default: <OpenLayers.Handler.MOD_SHIFT>
      */
     zoomBoxKeyMask: OpenLayers.Handler.MOD_SHIFT,
     
diff --git a/lib/OpenLayers/Control/ZoomBox.js b/lib/OpenLayers/Control/ZoomBox.js
index 9cdee9180e..3846d2fdff 100644
--- a/lib/OpenLayers/Control/ZoomBox.js
+++ b/lib/OpenLayers/Control/ZoomBox.js
@@ -31,7 +31,16 @@ OpenLayers.Control.ZoomBox = OpenLayers.Class(OpenLayers.Control, {
     out: false,
 
     /**
-     * Property: alwaysZoom
+     * APIProperty: keyMask
+     * {Integer} Zoom only occurs if the keyMask matches the combination of 
+     *     keys down. Use bitwise operators and one or more of the
+     *     <OpenLayers.Handler> constants to construct a keyMask. Leave null if 
+     *     not used mask. Default is null.
+     */
+    keyMask: null,
+
+    /**
+     * APIProperty: alwaysZoom
      * {Boolean} Always zoom in/out, when box drawed 
      */
     alwaysZoom: false,