diff --git a/files/preseed/mbp.seed b/files/preseed/mbp.seed
index 4c56c7b..a15c7db 100644
--- a/files/preseed/mbp.seed
+++ b/files/preseed/mbp.seed
@@ -8,4 +8,4 @@
 # well keep them installed.
 #ubiquity ubiquity/keep-installed string icedtea6-plugin openoffice.org
 
-d-i debian-installer/add-kernel-opts string efi=noruntime pcie_ports=compat acpi=force
+d-i debian-installer/add-kernel-opts string pcie_ports=compat intel_iommu=on iommu=pt