diff --git a/flake.nix b/flake.nix
index ccfd9480..26145bd6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -388,9 +388,9 @@
               echo '${selfRef}' > flake
 
               [ -e old ] && nix store diff-closures ./old ./current
-              ln -sfT `pwd`/current /nix/var/nix/gcroots/microvm/${name}
-              ln -sfT `pwd`/booted /nix/var/nix/gcroots/microvm/booted-${name}
-              ln -sfT `pwd`/old /nix/var/nix/gcroots/microvm/old-${name}
+              ln -sfT \$PWD/current /nix/var/nix/gcroots/microvm/${name}
+              ln -sfT \$PWD/booted /nix/var/nix/gcroots/microvm/booted-${name}
+              ln -sfT \$PWD/old /nix/var/nix/gcroots/microvm/old-${name}
 
               systemctl restart microvm@${name}.service
               END
diff --git a/modules/microvm.nix b/modules/microvm.nix
index 689b752c..7f865942 100644
--- a/modules/microvm.nix
+++ b/modules/microvm.nix
@@ -66,7 +66,7 @@ in
     copyToServer = writeScript "copy-to-${server}" ''
       #! ${runtimeShell} -e
 
-      nix copy --to ssh://root@${serverFQDN} $@
+      nix copy --to ssh-ng://root@${serverFQDN} $@
     '';
 
     runOnServer = writeScript "run-on-${server}" ''