diff --git a/README.md b/README.md
index e96e2ee..7e1edae 100644
--- a/README.md
+++ b/README.md
@@ -326,7 +326,8 @@ supported.
 -   Use cursor keys and enter key to select the **macOS Base System**
 -   From **macOS Utilities**
     -   Click **Disk Utility** and **Continue**
-        -   Select `QEMU HARDDISK Media` (\~103.08GB) from the list and
+        -   Select `QEMU HARDDISK Media` (\~103.08GB) from the list
+            (on Big Sur and above use `Apple Inc. VirtIO Block Device`) and
             click **Erase**.
         -   Enter a `Name:` for the disk
         -   If you are installing macOS Mojave or later (Catalina, Big