diff --git a/drivers/iio/adc/ad7380.c b/drivers/iio/adc/ad7380.c
index f93e6c67766a..ed5e43c8c84c 100644
--- a/drivers/iio/adc/ad7380.c
+++ b/drivers/iio/adc/ad7380.c
@@ -909,8 +909,7 @@ struct ad7380_state {
 	 * Make the buffer large enough for MAX_NUM_CHANNELS 32-bit samples and
 	 * one 64-bit aligned 64-bit timestamp.
 	 */
-	u8 scan_data[ALIGN(MAX_NUM_CHANNELS * sizeof(u32), sizeof(s64))
-			   + sizeof(s64)] __aligned(IIO_DMA_MINALIGN);
+	IIO_DECLARE_DMA_BUFFER_WITH_TS(u8, scan_data, MAX_NUM_CHANNELS * sizeof(u32));
 	/* buffers for reading/writing registers */
 	u16 tx;
 	u16 rx;