diff --git a/doc/NERD_tree.txt b/doc/NERD_tree.txt
index 8bba7f1..6ff68e8 100644
--- a/doc/NERD_tree.txt
+++ b/doc/NERD_tree.txt
@@ -498,6 +498,14 @@ Applies to: files and directories.
 
 Display the filesystem menu. See |NERDTreeFilesysMenu| for details.
 
+------------------------------------------------------------------------------
+                                                                 *NERDTree-cd*
+Default key: cd
+Map option: NERDTreeMapChdir
+Applies to: files and directories.
+
+Change vims current working directory to that of the selected node.
+
 ------------------------------------------------------------------------------
                                                                   *NERDTree-I*
 Default key: I