diff --git a/pkgs/applications/virtualization/driver/win-spice/default.nix b/pkgs/applications/virtualization/driver/win-spice/default.nix
index 10668afd7eb4..9bbbe640148d 100644
--- a/pkgs/applications/virtualization/driver/win-spice/default.nix
+++ b/pkgs/applications/virtualization/driver/win-spice/default.nix
@@ -60,8 +60,8 @@ stdenv.mkDerivation  {
       # SPICE needs vioserial
       # TODO: Link windows version in win-spice (here) to version used in win-virtio.
       #       That way it would never matter whether vioserial is installed from win-virtio or win-spice.
-      copy_vioserial = arch: "mkdir -p $out/${arch}/vioserial; cp ${win-virtio}/${arch}/vioserial/* $out/${arch}/vioserial/. \n";
-      copy = arch: version: (copy_qxl arch version) + (copy_usbdk arch) + (copy_vdagent arch) + (copy_vioserial arch);
+      copy_vioserial = arch: version: "mkdir -p $out/${arch}/vioserial; cp ${win-virtio}/vioserial/${version}/${arch}/* $out/${arch}/vioserial/. \n";
+      copy = arch: version: (copy_qxl arch version) + (copy_usbdk arch) + (copy_vdagent arch) + (copy_vioserial arch version);
     in ''
       runHook preInstall
       ${(copy "amd64" "w10") + (copy "x86" "w10")}