diff --git a/F.A.Q..md b/F.A.Q..md
index e69c1ad..d60900f 100644
--- a/F.A.Q..md
+++ b/F.A.Q..md
@@ -76,4 +76,11 @@ Use these variables in your vimrc. Note that below are default arrow symbols.
 
 ## How can I open files, directories, and bookmarks in new tabs?
 
-Use the `t` and `T` mappings in the NERDTree window.
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+Use the `t` and `T` mappings in the NERDTree window.
+
+## How can I close NERDTree window after opening a file in it
+
+You can define a hot key for it in your .vimrc file. In the example below the d+<Enter> key is defined to do so. This hotkey will be valid only until the NERDTree is closed.
+
+    autocmd BufEnter NERD_tree_* nmap  d<CR> <CR> :NERDTreeToggle <CR>
+    autocmd BufLeave NERD_tree_* unmap d<CR>
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