diff --git a/UnixPkg/ResetRuntimeDxe/Reset.c b/UnixPkg/ResetRuntimeDxe/Reset.c
index 72c6c09aa1..f583b649eb 100644
--- a/UnixPkg/ResetRuntimeDxe/Reset.c
+++ b/UnixPkg/ResetRuntimeDxe/Reset.c
@@ -44,7 +44,7 @@ UnixResetSystem (
   IN EFI_RESET_TYPE   ResetType,
   IN EFI_STATUS       ResetStatus,
   IN UINTN            DataSize,
-  IN CHAR16           *ResetData OPTIONAL
+  IN VOID             *ResetData OPTIONAL
   );
 
 EFI_STATUS
@@ -92,7 +92,7 @@ UnixResetSystem (
   IN EFI_RESET_TYPE   ResetType,
   IN EFI_STATUS       ResetStatus,
   IN UINTN            DataSize,
-  IN CHAR16           *ResetData OPTIONAL
+  IN VOID             *ResetData OPTIONAL
   )
 /*++