diff --git a/README.markdown b/README.markdown
index a3a62c1..7c6ba3c 100644
--- a/README.markdown
+++ b/README.markdown
@@ -162,6 +162,11 @@ autocmd BufEnter * if tabpagenr('$') == 1 && winnr('$') == 1 && exists('b:NERDTr
 " Open the existing NERDTree on each new tab.
 autocmd BufWinEnter * silent NERDTreeMirror
 ```
+or change your NERDTree-launching shortcut key like so:
+```vim
+" Mirror the NERDTree before showing it. This makes it the same on all tabs.
+nnoremap <C-n> :NERDTreeMirror<CR>:NERDTreeFocus<CR>
+```
 
 ### How can I change the default arrows?