diff --git a/lib/set_CMDLINE.sh b/lib/set_CMDLINE.sh
index 351d33b..8a98203 100755
--- a/lib/set_CMDLINE.sh
+++ b/lib/set_CMDLINE.sh
@@ -52,12 +52,12 @@ function set_GRUB () {
     if grep -q "GRUB_CMDLINE_LINUX_DEFAULT=" "$SCRIPTDIR/$DEFAULT/grub" ;
     then
         # Update the GRUB_CMDLINE_LINUX_DEFAULT line
-        GRUB_CMDLINE=$(grep -P "^GRUB_CMDLINE_LINUX_DEFAULT" "/etc/default/grub" | perl -pe "s/GRUB_CMDLINE_LINUX_DEFAULT=\"(.+)\"/\1/" | perl -pe "s/iommu=(pt|on)|amd_iommu=on|vfio_pci.ids=.+|vfio_pci.disable_vga=\d{1}//g" | perl -pe "s/(^\s+|\s+$)//g")
+        GRUB_CMDLINE=$(grep -P "^GRUB_CMDLINE_LINUX_DEFAULT" "/etc/default/grub" | perl -pe "s/GRUB_CMDLINE_LINUX_DEFAULT=\"(.+)\"/\1/" | perl -pe "s/(amd|intel)_iommu=(on|1)|iommu=(pt|on)|vfio_pci.ids=.+|vfio_pci.disable_vga=\d{1}//g" | perl -pe "s/(^\s+|\s+$)//g")
         GRUB_CMDLINE_LINUX=$(grep -P "^GRUB_CMDLINE_LINUX_DEFAULT" "/etc/default/grub")
         perl -pi -e "s/${GRUB_CMDLINE_LINUX}/GRUB_CMDLINE_LINUX_DEFAULT=\"${GRUB_CMDLINE} ${CMDLINE}\"/" "${SCRIPTDIR}/$DEFAULT/grub"
     else
         # Update the GRUB_CMDLINE_LINUX line
-        GRUB_CMDLINE=$(grep -P "^GRUB_CMDLINE_LINUX" "/etc/default/grub" | perl -pe "s/GRUB_CMDLINE_LINUX=\"(.+)\"/\1/" | perl -pe "s/iommu=(pt|on)|amd_iommu=on|vfio_pci.ids=.+|vfio_pci.disable_vga=\d{1}//g" | perl -pe "s/(^\s+|\s+$)//g")
+        GRUB_CMDLINE=$(grep -P "^GRUB_CMDLINE_LINUX" "/etc/default/grub" | perl -pe "s/GRUB_CMDLINE_LINUX=\"(.+)\"/\1/" | perl -pe "s/(amd|intel)_iommu=(on|1)|iommu=(pt|on)|vfio_pci.ids=.+|vfio_pci.disable_vga=\d{1}//g" | perl -pe "s/(^\s+|\s+$)//g")
         GRUB_CMDLINE_LINUX=$(grep -P "^GRUB_CMDLINE_LINUX" "/etc/default/grub")
         perl -pi -e "s/${GRUB_CMDLINE_LINUX}/GRUB_CMDLINE_LINUX=\"${GRUB_CMDLINE} ${CMDLINE}\"/" "${SCRIPTDIR}/$DEFAULT/grub"
     fi