diff --git a/profiles/disko/vm.nix b/profiles/disko/vm.nix
index 2035785..fdcca27 100644
--- a/profiles/disko/vm.nix
+++ b/profiles/disko/vm.nix
@@ -3,6 +3,7 @@
     disk = {
       main = {
         type = "disk";
+        device = "/dev/sda";
         content = {
           type = "gpt";
           partitions = {