diff --git a/MdePkg/Library/BaseLib/X64/FlushCacheLine.asm b/MdePkg/Library/BaseLib/X64/FlushCacheLine.asm
index 44d7730947..83966a691d 100644
--- a/MdePkg/Library/BaseLib/X64/FlushCacheLine.asm
+++ b/MdePkg/Library/BaseLib/X64/FlushCacheLine.asm
@@ -24,8 +24,8 @@
     .code
 
 ;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
+; VOID *
+; EFIAPI 
 ; AsmFlushCacheLine (
 ;   IN      VOID                      *LinearAddress
 ;   );