diff --git a/nix/configuration/configuration.nix b/nix/configuration/configuration.nix
index eb942e1..1d1ee65 100644
--- a/nix/configuration/configuration.nix
+++ b/nix/configuration/configuration.nix
@@ -147,6 +147,7 @@
     nix-index-unwrapped
     gnumake
     ncdu
+    nix-tree
   ];
 
   services.openssh = {