diff --git a/MdePkg/Include/Guid/DebugImageInfoTable.h b/MdePkg/Include/Guid/DebugImageInfoTable.h
index 97f01f43dc..d86e64f02e 100644
--- a/MdePkg/Include/Guid/DebugImageInfoTable.h
+++ b/MdePkg/Include/Guid/DebugImageInfoTable.h
@@ -27,7 +27,7 @@
 
 #define EFI_DEBUG_IMAGE_INFO_UPDATE_IN_PROGRESS 0x01
 #define EFI_DEBUG_IMAGE_INFO_TABLE_MODIFIED     0x02
-#define EFI_DEBUG_IMAGE_INFO_INITIAL_SIZE       (EFI_PAGE_SIZE / sizeof (UINTN))
+
 #define EFI_DEBUG_IMAGE_INFO_TYPE_NORMAL        0x01
 
 typedef struct {