diff --git a/MdeModulePkg/Library/EdkDxePrintLib/PrintLib.c b/MdeModulePkg/Library/EdkDxePrintLib/PrintLib.c
index e1c9bb0e2b..78c49ad386 100644
--- a/MdeModulePkg/Library/EdkDxePrintLib/PrintLib.c
+++ b/MdeModulePkg/Library/EdkDxePrintLib/PrintLib.c
@@ -548,10 +548,10 @@ AsciiSPrintUnicodeFormat (
 UINTN
 EFIAPI
 AsciiValueToString (
-  IN OUT CHAR8  *Buffer,
-  IN UINTN      Flags,
-  IN INT64      Value,
-  IN UINTN      Width
+  OUT CHAR8      *Buffer,
+  IN  UINTN      Flags,
+  IN  INT64      Value,
+  IN  UINTN      Width
   )
 {
   if (InternalLocatePrintProtocol() != EFI_SUCCESS) {