diff --git a/default.nix b/default.nix
index 6e2097a..4158a39 100644
--- a/default.nix
+++ b/default.nix
@@ -1,9 +1,9 @@
-{ writeShellApplication, coreutils, openssh }:
+{ writeShellApplication, coreutils, openssh, util-linux }:
 
 writeShellApplication {
   name = "rm-sync";
 
-  runtimeInputs = [ coreutils openssh ];
+  runtimeInputs = [ coreutils openssh util-linux ];
 
   text = builtins.readFile ./rm-sync.sh;
 }