diff --git a/drivers/filesystems/cdfs/namesup.c b/drivers/filesystems/cdfs/namesup.c
index 96e3aa3d3e..b93ad9f3db 100644
--- a/drivers/filesystems/cdfs/namesup.c
+++ b/drivers/filesystems/cdfs/namesup.c
@@ -412,6 +412,8 @@ Return Value:
 
         if ((*Wchar < 0xff) &&
             !FsRtlIsAnsiCharacterLegalHpfs( *Wchar, FALSE ) &&
+            (*Wchar != 0xfc) &&
+            (*Wchar != 0xdc) &&
             (*Wchar != L'"') &&
             (*Wchar != L'<') &&
             (*Wchar != L'>') &&