diff --git a/MdePkg/Include/IndustryStandard/SerialPortConsoleRedirectionTable.h b/MdePkg/Include/IndustryStandard/SerialPortConsoleRedirectionTable.h
index bf967880ab..13c6e47fa4 100644
--- a/MdePkg/Include/IndustryStandard/SerialPortConsoleRedirectionTable.h
+++ b/MdePkg/Include/IndustryStandard/SerialPortConsoleRedirectionTable.h
@@ -23,7 +23,7 @@
 ///
 #define EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_REVISION  0x02
 
-#define EFI_ACPI_4_0_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_REVISION  0x04
+#define EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_REVISION_4  0x04
 ///
 /// Serial Port Console Redirection Table Format
 ///
@@ -80,7 +80,7 @@ typedef struct {
   UINT16                                    NameSpaceStrLength;
   UINT16                                    NameSpaceStrOffset;
   CHAR8                                     NameSpaceString[0];
-} EFI_ACPI_4_0_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE;
+} EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_4;
 
 #pragma pack()