diff --git a/PcAtChipsetPkg/8259InterruptControllerDxe/8259.h b/PcAtChipsetPkg/8259InterruptControllerDxe/8259.h
index b24df2fcec..9ab3379f78 100644
--- a/PcAtChipsetPkg/8259InterruptControllerDxe/8259.h
+++ b/PcAtChipsetPkg/8259InterruptControllerDxe/8259.h
@@ -26,7 +26,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <Library/BaseLib.h>
 #include <Library/PcdLib.h>
 
-#include <IndustryStandard/Pci22.h>
+#include <IndustryStandard/Pci.h>
 //
 // 8259 Hardware definitions
 //