diff --git a/drivers/iio/dac/ad5755.c b/drivers/iio/dac/ad5755.c
index ee1e95a3a0c3..c494276da4b0 100644
--- a/drivers/iio/dac/ad5755.c
+++ b/drivers/iio/dac/ad5755.c
@@ -97,7 +97,7 @@ struct ad5755_state {
 	 */
 
 	union {
-		u32 d32;
+		__be32 d32;
 		u8 d8[4];
 	} data[2] ____cacheline_aligned;
 };