diff --git a/src/include/device/pciexp.h b/src/include/device/pciexp.h
index 9f9c28ecb5..05d3873238 100644
--- a/src/include/device/pciexp.h
+++ b/src/include/device/pciexp.h
@@ -3,6 +3,7 @@
 #ifndef DEVICE_PCIEXP_H
 #define DEVICE_PCIEXP_H
 /* (c) 2005 Linux Networx GPL see COPYING for details */
+#include <device/pci_def.h>
 
 enum aspm_type {
 	PCIE_ASPM_NONE = 0,