diff --git a/MdePkg/Library/BaseMemoryLib/CopyMemWrapper.c b/MdePkg/Library/BaseMemoryLib/CopyMemWrapper.c
index 09c18255aa..f957c8c850 100644
--- a/MdePkg/Library/BaseMemoryLib/CopyMemWrapper.c
+++ b/MdePkg/Library/BaseMemoryLib/CopyMemWrapper.c
@@ -52,7 +52,7 @@ CopyMem (
   IN UINTN       Length
   )
 {
-  if (0 == Length) {
+  if (Length == 0) {
     return DestinationBuffer;
   }
   ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)DestinationBuffer));