diff --git a/src/lib/smbios.c b/src/lib/smbios.c
index 449e4fd..dcf12bf 100644
--- a/src/lib/smbios.c
+++ b/src/lib/smbios.c
@@ -15,7 +15,6 @@
 #include <commonlib/helpers.h>
 #include <device/pci_ids.h>
 #include <device/pci.h>
-#include <device/pci_def.h>
 #include <drivers/vpd/vpd.h>
 #include <stdlib.h>
 
diff --git a/src/soc/intel/xeon_sp/chip_gen1.c b/src/soc/intel/xeon_sp/chip_gen1.c
index 143cc89..b17b773 100644
--- a/src/soc/intel/xeon_sp/chip_gen1.c
+++ b/src/soc/intel/xeon_sp/chip_gen1.c
@@ -5,7 +5,6 @@
 #include <console/console.h>
 #include <device/pci.h>
 #include <device/pci_ids.h>
-#include <device/pci_def.h>
 #include <soc/pci_devs.h>
 #include <intelblocks/acpi.h>
 #include <soc/acpi.h>
diff --git a/src/soc/intel/xeon_sp/cpx/chip.c b/src/soc/intel/xeon_sp/cpx/chip.c
index 9c86aee..8b9a673 100644
--- a/src/soc/intel/xeon_sp/cpx/chip.c
+++ b/src/soc/intel/xeon_sp/cpx/chip.c
@@ -6,7 +6,6 @@
 #include <cpu/x86/mp.h>
 #include <device/pci.h>
 #include <device/pci_ids.h>
-#include <device/pci_def.h>
 #include <gpio.h>
 #include <intelblocks/acpi.h>
 #include <intelblocks/lpc_lib.h>
diff --git a/src/soc/intel/xeon_sp/skx/soc_util.c b/src/soc/intel/xeon_sp/skx/soc_util.c
index 38d834f..6f48246 100644
--- a/src/soc/intel/xeon_sp/skx/soc_util.c
+++ b/src/soc/intel/xeon_sp/skx/soc_util.c
@@ -3,7 +3,6 @@
 #include <assert.h>
 #include <console/console.h>
 #include <device/pci.h>
-#include <device/pci_def.h>
 #include <device/pci_ids.h>
 #include <hob_iiouds.h>
 #include <intelblocks/cpulib.h>
diff --git a/src/soc/intel/xeon_sp/spr/chip.c b/src/soc/intel/xeon_sp/spr/chip.c
index 9b3b46f..ec23940 100644
--- a/src/soc/intel/xeon_sp/spr/chip.c
+++ b/src/soc/intel/xeon_sp/spr/chip.c
@@ -6,7 +6,6 @@
 #include <cpu/x86/lapic.h>
 #include <device/pci.h>
 #include <device/pci_ids.h>
-#include <device/pci_def.h>
 #include <device/pciexp.h>
 #include <intelblocks/acpi.h>
 #include <intelblocks/gpio.h>
diff --git a/src/southbridge/intel/bd82x6x/common.c b/src/southbridge/intel/bd82x6x/common.c
index 63d2fb2..401be76 100644
--- a/src/southbridge/intel/bd82x6x/common.c
+++ b/src/southbridge/intel/bd82x6x/common.c
@@ -5,7 +5,6 @@
 #include <console/console.h>
 #include <delay.h>
 #include <device/pci.h>
-#include <device/pci_def.h>
 #include <device/pci_ids.h>
 #include <device/pci_ops.h>
 #include <stdint.h>