diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c
index 95f675e2e532..24f732790753 100644
--- a/drivers/iio/light/hid-sensor-prox.c
+++ b/drivers/iio/light/hid-sensor-prox.c
@@ -226,6 +226,11 @@ static int prox_parse_report(struct platform_device *pdev,
 	dev_dbg(&pdev->dev, "prox %x:%x\n", st->prox_attr.index,
 			st->prox_attr.report_id);
 
+	st->scale_precision = hid_sensor_format_scale(hsdev->usage,
+						      &st->prox_attr,
+						      &st->scale_pre_decml,
+						      &st->scale_post_decml);
+
 	return ret;
 }