diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c
index 98361acd3053fd..b5499ca8757ece 100644
--- a/drivers/tty/n_hdlc.c
+++ b/drivers/tty/n_hdlc.c
@@ -115,7 +115,7 @@
 struct n_hdlc_buf {
 	struct list_head  list_item;
 	int		  count;
-	char		  buf[1];
+	char		  buf[];
 };
 
 #define	N_HDLC_BUF_SIZE	(sizeof(struct n_hdlc_buf) + maxframe)