diff --git a/lib/nerdtree/tree_dir_node.vim b/lib/nerdtree/tree_dir_node.vim
index 5ca94d4..88ea9e6 100644
--- a/lib/nerdtree/tree_dir_node.vim
+++ b/lib/nerdtree/tree_dir_node.vim
@@ -220,13 +220,6 @@ function! s:TreeDirNode.getChildIndex(path)
     return -1
 endfunction
 
-" FUNCTION: TreeDirNode.getDirChildren() {{{1
-" Return a list of all child nodes from "self.children" that are of type
-" TreeDirNode.
-function! s:TreeDirNode.getDirChildren()
-    return filter(self.children, 'v:val.path.isDirectory == 1')
-endfunction
-
 " FUNCTION: TreeDirNode._glob(pattern, all) {{{1
 " Return a list of strings naming the descendants of the directory in this
 " TreeDirNode object that match the specified glob pattern.