diff --git a/MdePkg/Include/IndustryStandard/Acpi40.h b/MdePkg/Include/IndustryStandard/Acpi40.h
index 4b34660fa6..6c129979f0 100644
--- a/MdePkg/Include/IndustryStandard/Acpi40.h
+++ b/MdePkg/Include/IndustryStandard/Acpi40.h
@@ -998,12 +998,12 @@ typedef struct {
 ///
 /// ERST Action Command Status
 ///
-#define EFI_ACPI_4_0_EINJ_STATUS_SUCCESS                 0x00
-#define EFI_ACPI_4_0_EINJ_STATUS_NOT_ENOUGH_SPACE        0x01
-#define EFI_ACPI_4_0_EINJ_STATUS_HARDWARE_NOT_AVAILABLE  0x02
-#define EFI_ACPI_4_0_EINJ_STATUS_FAILED                  0x03
-#define EFI_ACPI_4_0_EINJ_STATUS_RECORD_STORE_EMPTY      0x04
-#define EFI_ACPI_4_0_EINJ_STATUS_RECORD_NOT_FOUND        0x05
+#define EFI_ACPI_4_0_ERST_STATUS_SUCCESS                 0x00
+#define EFI_ACPI_4_0_ERST_STATUS_NOT_ENOUGH_SPACE        0x01
+#define EFI_ACPI_4_0_ERST_STATUS_HARDWARE_NOT_AVAILABLE  0x02
+#define EFI_ACPI_4_0_ERST_STATUS_FAILED                  0x03
+#define EFI_ACPI_4_0_ERST_STATUS_RECORD_STORE_EMPTY      0x04
+#define EFI_ACPI_4_0_ERST_STATUS_RECORD_NOT_FOUND        0x05
 
 ///
 /// ERST Serialization Instructions