diff --git a/drivers/hwmon/tps23861.c b/drivers/hwmon/tps23861.c
index 68c77c493270..152e3c1c5c5f 100644
--- a/drivers/hwmon/tps23861.c
+++ b/drivers/hwmon/tps23861.c
@@ -132,7 +132,7 @@ static int tps23861_read_temp(struct tps23861_data *data, long *val)
 	if (err < 0)
 		return err;
 
-	*val = (regval * TEMPERATURE_LSB) - 20000;
+	*val = ((long)regval * TEMPERATURE_LSB) - 20000;
 
 	return 0;
 }