diff --git a/system/default/packages.nix b/system/default/packages.nix
index 8233e97..a331a7e 100644
--- a/system/default/packages.nix
+++ b/system/default/packages.nix
@@ -12,6 +12,7 @@
     bc                 # Command-line calculator
     coreutils          # Basic file, shell and text manipulation utilities
     file               # Determine file types
+    tree               # Show ASCII formatted directory tree
     which              # Locate commands in PATH
 
     # === TEXT EDITORS AND VIEWERS ===