diff --git a/parse.h b/parse.h
index 563712e..9b34de9 100644
--- a/parse.h
+++ b/parse.h
@@ -23,6 +23,8 @@
 	enum fio_opt_type type;
 	unsigned int off1;
 	unsigned int off2;
+	unsigned int off3;
+	unsigned int off4;
 	unsigned int max_val;
 	void *cb;
 };