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-rw-r--r--MdePkg/Include/IndustryStandard/Acpi65.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/MdePkg/Include/IndustryStandard/Acpi65.h b/MdePkg/Include/IndustryStandard/Acpi65.h
index 1e41ae9a27..6caadf2404 100644
--- a/MdePkg/Include/IndustryStandard/Acpi65.h
+++ b/MdePkg/Include/IndustryStandard/Acpi65.h
@@ -293,7 +293,7 @@ typedef struct {
///
/// MADT Revision (as defined in ACPI 6.5 spec.)
///
-#define EFI_ACPI_6_5_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION 0x05
+#define EFI_ACPI_6_5_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION 0x06
///
/// Multiple APIC Flags