diff --git a/hosts/del/programs.nix b/hosts/del/programs.nix
index 5633d5a4..5467628f 100644
--- a/hosts/del/programs.nix
+++ b/hosts/del/programs.nix
@@ -207,6 +207,7 @@ in {
             pcsc-tools
             libnfc
             nix-tree
+            duf
         ];
     };
 }
diff --git a/hosts/niks/programs.nix b/hosts/niks/programs.nix
index 1e127ce7..cebc61c1 100644
--- a/hosts/niks/programs.nix
+++ b/hosts/niks/programs.nix
@@ -195,6 +195,7 @@ in {
             sherlock
             nix-tree
             pciutils
+            duf
         ];
     };
 }