diff --git a/src/northbridge/intel/i440bx/debug.c b/src/northbridge/intel/i440bx/debug.c
index cff3ade..b4d92b0 100644
--- a/src/northbridge/intel/i440bx/debug.c
+++ b/src/northbridge/intel/i440bx/debug.c
@@ -13,6 +13,7 @@
 
 #include <console/console.h>
 #include <arch/io.h>
+#include <device/pci_ops.h>
 #include <spd.h>
 #include "raminit.h"
 
diff --git a/src/northbridge/intel/i440bx/northbridge.c b/src/northbridge/intel/i440bx/northbridge.c
index 4b1141c..ae89766 100644
--- a/src/northbridge/intel/i440bx/northbridge.c
+++ b/src/northbridge/intel/i440bx/northbridge.c
@@ -13,6 +13,7 @@
 
 #include <console/console.h>
 #include <arch/io.h>
+#include <device/pci_ops.h>
 #include <stdint.h>
 #include <device/device.h>
 #include <device/pci.h>
diff --git a/src/northbridge/intel/i440bx/ram_calc.c b/src/northbridge/intel/i440bx/ram_calc.c
index 962f3ba..3207688 100644
--- a/src/northbridge/intel/i440bx/ram_calc.c
+++ b/src/northbridge/intel/i440bx/ram_calc.c
@@ -16,6 +16,7 @@
 #define __SIMPLE_DEVICE__
 
 #include <arch/io.h>
+#include <device/pci_ops.h>
 #include <cbmem.h>
 #include <console/console.h>
 #include <commonlib/helpers.h>
diff --git a/src/northbridge/intel/i440bx/raminit.c b/src/northbridge/intel/i440bx/raminit.c
index 49994ed..0c9496b 100644
--- a/src/northbridge/intel/i440bx/raminit.c
+++ b/src/northbridge/intel/i440bx/raminit.c
@@ -20,6 +20,7 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include <arch/io.h>
+#include <device/pci_ops.h>
 #include <device/pci_def.h>
 #include <console/console.h>
 #include "i440bx.h"