1 files changed, 1 insertions, 1 deletions
diff --git a/MdePkg/Library/BaseLib/DivU64x32Remainder.c b/MdePkg/Library/BaseLib/DivU64x32Remainder.c
index aa34b31e46..e7a3094c6e 100644
--- a/MdePkg/Library/BaseLib/DivU64x32Remainder.c
+++ b/MdePkg/Library/BaseLib/DivU64x32Remainder.c
@@ -38,7 +38,7 @@ EFIAPI
 DivU64x32Remainder (
   IN      UINT64                    Dividend,
   IN      UINT32                    Divisor,
-  OUT     UINT32                    *Remainder
+  OUT     UINT32                    *Remainder  OPTIONAL
   )
 {
   ASSERT (Divisor != 0);