diff --git a/edk/Cper.h b/edk/Cper.h
index 5a6d2b2..0fcc967 100644
--- a/edk/Cper.h
+++ b/edk/Cper.h
@@ -1266,6 +1266,12 @@
 extern EFI_GUID   gEfiIommuDMArErrorSectionGuid;
 extern EFI_GUID   gEfiCcixPerLogErrorSectionGuid;
 extern EFI_GUID   gEfiCxlProtocolErrorSectionGuid;
+extern EFI_GUID   gEfiCxlGeneralMediaErrorSectionGuid;
+extern EFI_GUID   gEfiCxlDramEventErrorSectionGuid;
+extern EFI_GUID   gEfiCxlMemoryModuleErrorSectionGuid;
+extern EFI_GUID   gEfiCxlPhysicalSwitchErrorSectionGuid;
+extern EFI_GUID   gEfiCxlVirtualSwitchErrorSectionGuid;
+extern EFI_GUID   gEfiCxlMldPortErrorSectionGuid;
 #pragma pack()
 
 #if defined (MDE_CPU_IA32) || defined (MDE_CPU_X64)