diff --git a/drivers/i3c/master/mipi-i3c-hci/dma.c b/drivers/i3c/master/mipi-i3c-hci/dma.c
index 2990ac9eaade..a1ecdfc35641 100644
--- a/drivers/i3c/master/mipi-i3c-hci/dma.c
+++ b/drivers/i3c/master/mipi-i3c-hci/dma.c
@@ -139,7 +139,7 @@ struct hci_rh_data {
 
 struct hci_rings_data {
 	unsigned int total;
-	struct hci_rh_data headers[];
+	struct hci_rh_data headers[] __counted_by(total);
 };
 
 struct hci_dma_dev_ibi_data {