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-rw-r--r--MdePkg/Include/Guid/Acpi.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/MdePkg/Include/Guid/Acpi.h b/MdePkg/Include/Guid/Acpi.h
index 809edcd05e..91e24f1b22 100644
--- a/MdePkg/Include/Guid/Acpi.h
+++ b/MdePkg/Include/Guid/Acpi.h
@@ -37,10 +37,9 @@
// ACPI 2.0 or newer tables should use EFI_ACPI_TABLE_GUID.
//
#define EFI_ACPI_20_TABLE_GUID EFI_ACPI_TABLE_GUID
-#define EFI_ACPI_30_TABLE_GUID EFI_ACPI_TABLE_GUID
+extern EFI_GUID gEfiAcpiTableGuid;
extern EFI_GUID gEfiAcpi10TableGuid;
extern EFI_GUID gEfiAcpi20TableGuid;
-extern EFI_GUID gEfiAcpi30TableGuid;
#endif