diff --git a/DuetPkg/PciRootBridgeNoEnumerationDxe/Ipf/PcatIo.c b/DuetPkg/PciRootBridgeNoEnumerationDxe/Ipf/PcatIo.c
index f6d8c80fc0..570902148e 100644
--- a/DuetPkg/PciRootBridgeNoEnumerationDxe/Ipf/PcatIo.c
+++ b/DuetPkg/PciRootBridgeNoEnumerationDxe/Ipf/PcatIo.c
@@ -21,7 +21,7 @@ Revision History
 --*/
 
 #include "PcatPciRootBridge.h"
-#include "pci22.h"
+#include <IndustryStandard/Pci.h>
 #include "SalProc.h"
 
 #include EFI_GUID_DEFINITION (SalSystemTable)