diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_map.h b/drivers/net/ethernet/qualcomm/rmnet/rmnet_map.h
index e5a0b38f7dbe..2b033060fc20 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_map.h
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_map.h
@@ -19,7 +19,7 @@ struct rmnet_map_control_command {
 			__be16 flow_control_seq_num;
 			__be32 qos_id;
 		} flow_control;
-		u8 data[0];
+		DECLARE_FLEX_ARRAY(u8, data);
 	};
 }  __aligned(1);