diff --git a/src/mainboard/lenovo/t430s/variants/t430s/overridetree.cb b/src/mainboard/lenovo/t430s/variants/t430s/overridetree.cb
index abbe4a8ce1..4250665e2c 100644
--- a/src/mainboard/lenovo/t430s/variants/t430s/overridetree.cb
+++ b/src/mainboard/lenovo/t430s/variants/t430s/overridetree.cb
@@ -6,6 +6,7 @@ chip northbridge/intel/sandybridge
 			device pci 1c.4 on end # PCIe Port #5 Thunderbolt controller
 			device pci 1f.0 on
 				chip ec/lenovo/h8
+					device pnp ff.2 on end # dummy
 					register "has_bdc_detection" = "1"
 					register "bdc_gpio_num" = "54"
 					register "bdc_gpio_lvl" = "0"
diff --git a/src/mainboard/lenovo/t430s/variants/t431s/overridetree.cb b/src/mainboard/lenovo/t430s/variants/t431s/overridetree.cb
index 41bef2f70e..fcd137f9f7 100644
--- a/src/mainboard/lenovo/t430s/variants/t431s/overridetree.cb
+++ b/src/mainboard/lenovo/t430s/variants/t431s/overridetree.cb
@@ -33,6 +33,7 @@ chip northbridge/intel/sandybridge
 			device pci 1c.2 off end # PCIe Port #3
 			device pci 1f.0 on
 				chip ec/lenovo/h8
+					device pnp ff.2 on end # dummy
 					register "config0" = "0xa6"
 					register "config1" = "0x09"
 					register "config3" = "0xc0"