diff --git a/src/shared/gatt-db.h b/src/shared/gatt-db.h
index d05f4c1..74817a0 100644
--- a/src/shared/gatt-db.h
+++ b/src/shared/gatt-db.h
bool gatt_db_remove_service(struct gatt_db *db, uint16_t handle);
typedef void (*gatt_db_read_t) (uint16_t handle, uint16_t offset,
- bdaddr_t *bdaddr, void *user_data);
+ uint8_t att_opcode, bdaddr_t *bdaddr,
+ void *user_data);
typedef void (*gatt_db_write_t) (uint16_t handle, uint16_t offset,
const uint8_t *value, size_t len,
- bdaddr_t *bdaddr, void *user_data);
+ uint8_t att_opcode, bdaddr_t *bdaddr,
+ void *user_data);
uint16_t gatt_db_add_characteristic(struct gatt_db *db, uint16_t handle,
const bt_uuid_t *uuid,