diff --git a/pkgs/by-name/ni/nixos-build-vms/package.nix b/pkgs/by-name/ni/nixos-build-vms/package.nix
index a3798232d0fc..0de2fe24c7f1 100644
--- a/pkgs/by-name/ni/nixos-build-vms/package.nix
+++ b/pkgs/by-name/ni/nixos-build-vms/package.nix
@@ -10,7 +10,7 @@ replaceVarsWith {
 
   replacements = {
     inherit runtimeShell;
-    buildVms = ./build-vms.nix;
+    buildVms = "${./build-vms.nix}";
   };
 
   dir = "bin";