diff --git a/MdePkg/Include/Ppi/CpuIo.h b/MdePkg/Include/Ppi/CpuIo.h
index 1daf8257a3..7bd32ae0c4 100644
--- a/MdePkg/Include/Ppi/CpuIo.h
+++ b/MdePkg/Include/Ppi/CpuIo.h
@@ -19,6 +19,9 @@
 #ifndef __PEI_CPUIO_PPI_H__
 #define __PEI_CPUIO_PPI_H__
 
+#include <ProcessorBind.h>
+#include <Pi/PiPeiCis.h>
+
 #define EFI_PEI_CPU_IO_PPI_INSTALLED_GUID \
   { 0xe6af1f7b, 0xfc3f, 0x46da, {0xa8, 0x28, 0xa3, 0xb4, 0x57, 0xa4, 0x42, 0x82 } }
 
diff --git a/MdePkg/Include/Ppi/PciCfg2.h b/MdePkg/Include/Ppi/PciCfg2.h
index 7102539c2a..2e4b7aecd7 100644
--- a/MdePkg/Include/Ppi/PciCfg2.h
+++ b/MdePkg/Include/Ppi/PciCfg2.h
@@ -19,6 +19,8 @@
 #ifndef __PEI_PCI_CFG2_H__
 #define __PEI_PCI_CFG2_H__
 
+#include <ProcessorBind.h>
+#include <Pi/PiPeiCis.h>
 
 #define EFI_PEI_PCI_CFG2_PPI_GUID \
   { 0x57a449a, 0x1fdc, 0x4c06, { 0xbf, 0xc9, 0xf5, 0x3f, 0x6a, 0x99, 0xbb, 0x92 } }