diff --git a/src/viewer.js b/src/viewer.js
index ca77de89..b1342e88 100644
--- a/src/viewer.js
+++ b/src/viewer.js
@@ -779,6 +779,7 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
      */
     setMouseNavEnabled: function( enabled ){
         this.innerTracker.setTracking( enabled );
+        this.outerTracker.setTracking( enabled );
         /**
          * Raised when mouse/touch navigation is enabled or disabled (see {@link OpenSeadragon.Viewer#setMouseNavEnabled}).
          *