diff --git a/drivers/iio/adc/ad7291.c b/drivers/iio/adc/ad7291.c
index 3dd0105f63d7166d36f56e6ef209bdcae9b0bba1..f9ee189925dec0a90c9ee576cc72172e3eb0974c 100644
--- a/drivers/iio/adc/ad7291.c
+++ b/drivers/iio/adc/ad7291.c
@@ -179,7 +179,7 @@ static unsigned int ad7291_threshold_reg(const struct iio_chan_spec *chan,
 		offset = AD7291_VOLTAGE_OFFSET;
 		break;
 	default:
-	    return 0;
+		return 0;
 	}
 
 	switch (info) {