NERDTreeQuitOnOpen doesn't seem to work for NERDTree bookmarks

I have "let NERDTreeQuitOnOpen = 1" in my _vimrc (windows) and it works fine for NERDTree-o on a file. However, when i use NERDTree-o on a Bookmark for a file the file opens in the main window and focus switche开发者_Python百科s to it but the NERDTree window remains open. How can i fix this so that the behaviour is the same for bookmarks as it is for a normal file in the NERDTree file system tree?