diff --git a/cheat_sheet.md b/cheat_sheet.md
index 0b9ae2e..4e22908 100644
--- a/cheat_sheet.md
+++ b/cheat_sheet.md
@@ -39,3 +39,4 @@
 
 - `:%s/\s\+$//e` trim ending whitespace
 - `:%retab!` convert spaces to tabs
+- `NERDTree` open up nerd tree file explorer