diff --git a/drivers/input/touchscreen/touchright.c b/drivers/input/touchscreen/touchright.c
index 30ba97bd00a1..9be7c6bf5e7f 100644
--- a/drivers/input/touchscreen/touchright.c
+++ b/drivers/input/touchscreen/touchright.c
@@ -111,7 +111,7 @@ static int tr_connect(struct serio *serio, struct serio_driver *drv)
 
 	tr->serio = serio;
 	tr->dev = input_dev;
-	snprintf(tr->phys, sizeof(tr->phys), "%s/input0", serio->phys);
+	scnprintf(tr->phys, sizeof(tr->phys), "%s/input0", serio->phys);
 
 	input_dev->name = "Touchright Serial TouchScreen";
 	input_dev->phys = tr->phys;