diff --git a/drivers/net/can/slcan/slcan-core.c b/drivers/net/can/slcan/slcan-core.c
index 54d29a410ad54..92bdd49996d1d 100644
--- a/drivers/net/can/slcan/slcan-core.c
+++ b/drivers/net/can/slcan/slcan-core.c
@@ -647,7 +647,7 @@ static int slcan_transmit_cmd(struct slcan *sl, const unsigned char *cmd)
 		return -ENODEV;
 	}
 
-	n = snprintf(sl->xbuff, sizeof(sl->xbuff), "%s", cmd);
+	n = scnprintf(sl->xbuff, sizeof(sl->xbuff), "%s", cmd);
 	set_bit(TTY_DO_WRITE_WAKEUP, &sl->tty->flags);
 	actual = sl->tty->ops->write(sl->tty, sl->xbuff, n);
 	sl->xleft = n - actual;