diff --git a/drivers/slimbus/messaging.c b/drivers/slimbus/messaging.c
index 457ea1f8db30..5a2ff01b394c 100644
--- a/drivers/slimbus/messaging.c
+++ b/drivers/slimbus/messaging.c
@@ -307,7 +307,7 @@ int slim_write(struct slim_device *sdev, u32 addr, size_t count, u8 *val)
 {
 	struct slim_val_inf msg;
 
-	slim_fill_msg(&msg, addr, count,  val, NULL);
+	slim_fill_msg(&msg, addr, count,  NULL, val);
 
 	return slim_xfer_msg(sdev, &msg, SLIM_MSG_MC_CHANGE_VALUE);
 }