diff --git a/resources/viewer/bookmarks.js b/resources/viewer/bookmarks.js
index d36e7c579a..467e4d9d38 100644
--- a/resources/viewer/bookmarks.js
+++ b/resources/viewer/bookmarks.js
@@ -41,6 +41,7 @@ function scroll_to_bookmark(bookmark) {
     $.scrollTo($(bm[0]), 1000,
         {
             over:ratio,
+            axis: 'y',
             onAfter:function(){window.py_bridge.animated_scroll_done()}
         }
     );