diff --git a/block/sed-opal.c b/block/sed-opal.c
index 59a6ba2131d5..b4c761973ac1 100644
--- a/block/sed-opal.c
+++ b/block/sed-opal.c
@@ -372,8 +372,8 @@ static void check_geometry(struct opal_dev *dev, const void *data)
 {
 	const struct d0_geometry_features *geo = data;
 
-	dev->align = geo->alignment_granularity;
-	dev->lowest_lba = geo->lowest_aligned_lba;
+	dev->align = be64_to_cpu(geo->alignment_granularity);
+	dev->lowest_lba = be64_to_cpu(geo->lowest_aligned_lba);
 }
 
 static int execute_step(struct opal_dev *dev,