diff --git a/docs/Getting Started/Ubuntu/Ubuntu 22.04 Root on ZFS.rst b/docs/Getting Started/Ubuntu/Ubuntu 22.04 Root on ZFS.rst
index 828256d..74aa9ae 100644
--- a/docs/Getting Started/Ubuntu/Ubuntu 22.04 Root on ZFS.rst	
+++ b/docs/Getting Started/Ubuntu/Ubuntu 22.04 Root on ZFS.rst	
@@ -199,6 +199,10 @@ Step 2: Disk Formatting
      # For an array using a partition (e.g. a swap partition per this HOWTO):
      mdadm --zero-superblock --force ${DISK}-part2
 
+   If the disk was previously used with zfs::
+
+     wipefs -a $DISK
+
    Clear the partition table::
 
      sgdisk --zap-all $DISK