diff --git a/lib/interactive-vm.nix b/lib/interactive-vm.nix
index ba20987..e37b321 100644
--- a/lib/interactive-vm.nix
+++ b/lib/interactive-vm.nix
@@ -73,7 +73,7 @@ let
   }).config.system.build.vm;
 in
 {
-  pure = pkgs.writeDashBin "disko-vm" ''
+  pure = pkgs.writers.writeDashBin "disko-vm" ''
     set -efux
     export tmp=$(mktemp -d)
     trap 'rm -rf "$tmp"' EXIT