diff --git a/nix/configuration/configuration.nix b/nix/configuration/configuration.nix
index 044cb70..06b3f97 100644
--- a/nix/configuration/configuration.nix
+++ b/nix/configuration/configuration.nix
@@ -144,6 +144,7 @@
     git-crypt
     nix-index-unwrapped
     gnumake
+    ncdu
   ];
 
   services.openssh = {