diff --git a/MdePkg/Include/IndustryStandard/Acpi2_0.h b/MdePkg/Include/IndustryStandard/Acpi20.h
similarity index 100%
rename from MdePkg/Include/IndustryStandard/Acpi2_0.h
rename to MdePkg/Include/IndustryStandard/Acpi20.h