diff --git a/MdeModulePkg/Include/Library/GenericBdsLib.h b/MdeModulePkg/Include/Library/GenericBdsLib.h
index 9e358ddf65..3534722ee8 100644
--- a/MdeModulePkg/Include/Library/GenericBdsLib.h
+++ b/MdeModulePkg/Include/Library/GenericBdsLib.h
@@ -22,8 +22,6 @@ Abstract:
 #ifndef _GENERIC_BDS_LIB_H_
 #define _GENERIC_BDS_LIB_H_
 
-#define PI_SPECIFICATION_VERSION 0x00010000
-
 #include <PiDxe.h>
 #include <Protocol/HiiDatabase.h>
 #include <IndustryStandard/PeImage.h>