diff --git a/MdePkg/Library/BasePrintLib/PrintLibInternal.c b/MdePkg/Library/BasePrintLib/PrintLibInternal.c
index 3374d97e3a..30451b922e 100644
--- a/MdePkg/Library/BasePrintLib/PrintLibInternal.c
+++ b/MdePkg/Library/BasePrintLib/PrintLibInternal.c
@@ -928,7 +928,7 @@ BasePrintLibSPrintMarker (
     FormatCharacter = ((*Format & 0xff) | (*(Format + 1) << 8)) & FormatMask;
   }
 
-  if (Flags & COUNT_ONLY_NO_PRINT) {
+  if ((Flags & COUNT_ONLY_NO_PRINT) != 0) {
     return (LengthToReturn / BytesPerOutputCharacter);
   }