1 files changed, 5 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/UefiDriverEntryPoint.h b/MdePkg/Include/Library/UefiDriverEntryPoint.h
index ef9570ba04..2e520582ec 100644
--- a/MdePkg/Include/Library/UefiDriverEntryPoint.h
+++ b/MdePkg/Include/Library/UefiDriverEntryPoint.h
@@ -17,6 +17,11 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #define __MODULE_ENTRY_POINT_H__
 
 ///
+///Declare the PI Specification Revision that this driver requires to execute correctly.
+///
+extern CONST UINT32                   _gDxeRevision;
+
+///
 /// Declare the EFI/UEFI Specification Revision to which this driver is implemented 
 ///
 extern CONST UINT32                   _gUefiDriverRevision;