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diff --git a/ingen/InstanceAccess.hpp b/ingen/InstanceAccess.hpp
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+/*
+  This file is part of Ingen.
+  Copyright 2007-2015 David Robillard <http://drobilla.net/>
+
+  Ingen is free software: you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free
+  Software Foundation, either version 3 of the License, or any later version.
+
+  Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with Ingen.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef INGEN_ENGINE_INSTANCEACCESS_HPP
+#define INGEN_ENGINE_INSTANCEACCESS_HPP
+
+#include <utility>
+
+#include "ingen/LV2Features.hpp"
+#include "ingen/Node.hpp"
+#include "ingen/Store.hpp"
+#include "ingen/World.hpp"
+#include "ingen/types.hpp"
+#include "lilv/lilv.h"
+
+#include "lv2/core/lv2.h"
+
+namespace ingen {
+
+struct InstanceAccess : public ingen::LV2Features::Feature
+{
+	const char* uri() const override { return "http://lv2plug.in/ns/ext/instance-access"; }
+
+	SPtr<LV2_Feature> feature(World* world, Node* node) override {
+		Node* store_node = world->store()->get(node->path());
+		if (!store_node) {
+			return SPtr<LV2_Feature>();
+		}
+
+		LilvInstance* instance = store_node->instance();
+		if (!instance) {
+			return SPtr<LV2_Feature>();
+		}
+
+		return SPtr<LV2_Feature>(
+			new LV2_Feature{ "http://lv2plug.in/ns/ext/instance-access",
+			                 lilv_instance_get_handle(instance) });
+	}
+};
+
+} // namespace ingen
+
+#endif // INGEN_ENGINE_INSTANCEACCESS_HPP