diff --git a/profile.h b/profile.h
index 3bae500..a54f072 100644
--- a/profile.h
+++ b/profile.h
@@ -3,6 +3,15 @@
 
 #include "flist.h"
 
+/*
+ * Functions for overriding internal fio io_u functions
+ */
+struct prof_io_ops {
+	int (*fill_io_u_off)(struct thread_data *, struct io_u *);
+	int (*fill_io_u_size)(struct thread_data *, struct io_u *);
+	struct fio_file *(*get_next_file)(struct thread_data *);
+};
+
 struct profile_ops {
 	struct flist_head list;
 	char name[32];
@@ -24,11 +33,7 @@
 	 */
 	const char **cmdline;
 
-	/*
-	 * Functions for overriding internal fio io_u functions
-	 */
-	int (*fill_io_u_off)(struct thread_data *, struct io_u *);
-	int (*fill_io_u_size)(struct thread_data *, struct io_u *);
+	struct prof_io_ops *io_ops;
 };
 
 int register_profile(struct profile_ops *);