diff --git a/include/chipdrivers/probing.h b/include/chipdrivers/probing.h
index 561d6ef..18eb347 100644
--- a/include/chipdrivers/probing.h
+++ b/include/chipdrivers/probing.h
@@ -49,6 +49,7 @@
 struct id_info {
 	union {
 		uint32_t manufacture;
+		uint32_t hwversion;
 		uint32_t id1;
 	};
 	union {