diff --git a/source3/smbd/nttrans.c b/source3/smbd/nttrans.c
index bacb9cb..a96a3b8 100644
--- a/source3/smbd/nttrans.c
+++ b/source3/smbd/nttrans.c
@@ -418,6 +418,7 @@ void reply_ntcreate_and_X(struct smb_request *req)
 	flags = IVAL(req->vwv+3, 1);
 	access_mask = IVAL(req->vwv+7, 1);
 	file_attributes = IVAL(req->vwv+13, 1);
+	file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
 	share_access = IVAL(req->vwv+15, 1);
 	create_disposition = IVAL(req->vwv+17, 1);
 	create_options = IVAL(req->vwv+19, 1);
@@ -913,6 +914,7 @@ static void call_nt_transact_create(connection_struct *conn,
 	flags = IVAL(params,0);
 	access_mask = IVAL(params,8);
 	file_attributes = IVAL(params,20);
+	file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
 	share_access = IVAL(params,24);
 	create_disposition = IVAL(params,28);
 	create_options = IVAL(params,32);