diff --git a/drivers/w1/w1_family.h b/drivers/w1/w1_family.h
index 625dd08..4ad0e81 100644
--- a/drivers/w1/w1_family.h
+++ b/drivers/w1/w1_family.h
@@ -52,6 +52,7 @@
 {
 	int  (* add_slave)(struct w1_slave *);
 	void (* remove_slave)(struct w1_slave *);
+	const struct attribute_group **groups;
 };
 
 struct w1_family