diff --git a/src/netconf_access.hpp b/src/netconf_access.hpp
index f43976a..aa13312 100644
--- a/src/netconf_access.hpp
+++ b/src/netconf_access.hpp
@@ -46,6 +46,8 @@
     std::shared_ptr<Schema> schema() override;
 
 private:
+    std::vector<std::map<std::string, leaf_data_>> listInstances(const std::string& path) override;
+
     std::string fetchSchema(const std::string_view module, const
             std::optional<std::string_view> revision, const
             std::optional<std::string_view> submodule, const