diff --git a/autoload/nerdtree/ui_glue.vim b/autoload/nerdtree/ui_glue.vim
index e184703..0cc3362 100644
--- a/autoload/nerdtree/ui_glue.vim
+++ b/autoload/nerdtree/ui_glue.vim
@@ -23,17 +23,10 @@ function! nerdtree#ui_glue#createDefaultBindings()
     call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenSplit, 'scope': "Node", 'callback': s."openHSplit" })
     call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenVSplit, 'scope': "Node", 'callback': s."openVSplit" })
 
-    call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenSplit, 'scope': "Bookmark", 'callback': s."openHSplit" })
-    call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenVSplit, 'scope': "Bookmark", 'callback': s."openVSplit" })
-
     call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapPreview, 'scope': "Node", 'callback': s."previewNodeCurrent" })
     call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapPreviewVSplit, 'scope': "Node", 'callback': s."previewNodeVSplit" })
     call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapPreviewSplit, 'scope': "Node", 'callback': s."previewNodeHSplit" })
 
-    call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapPreview, 'scope': "Bookmark", 'callback': s."previewNodeCurrent" })
-    call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapPreviewVSplit, 'scope': "Bookmark", 'callback': s."previewNodeVSplit" })
-    call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapPreviewSplit, 'scope': "Bookmark", 'callback': s."previewNodeHSplit" })
-
     call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenRecursively, 'scope': "DirNode", 'callback': s."openNodeRecursively" })
 
     call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapUpdir, 'scope': "all", 'callback': s."upDirCurrentRootClosed" })