diff --git a/src/adapter.h b/src/adapter.h
index f1f546c..c33234f 100644
--- a/src/adapter.h
+++ b/src/adapter.h
@@ -107,7 +107,6 @@ const gchar *adapter_get_path(struct btd_adapter *adapter);
 void adapter_get_address(struct btd_adapter *adapter, bdaddr_t *bdaddr);
 void adapter_set_state(struct btd_adapter *adapter, int state);
 int adapter_get_state(struct btd_adapter *adapter);
-int adapter_get_discover_type(struct btd_adapter *adapter);
 struct remote_dev_info *adapter_search_found_devices(struct btd_adapter *adapter,
 						struct remote_dev_info *match);
 void adapter_update_found_devices(struct btd_adapter *adapter, bdaddr_t *bdaddr,