diff --git a/libs/ardour/ardour/plugin.h b/libs/ardour/ardour/plugin.h
index 7f2ff6d9f2..a27c683672 100644
--- a/libs/ardour/ardour/plugin.h
+++ b/libs/ardour/ardour/plugin.h
@@ -258,7 +258,7 @@ public:
 	const PresetRecord* preset_by_label (const std::string&);
 	const PresetRecord* preset_by_uri (const std::string&);
 
-	std::vector<PresetRecord> get_presets ();
+	virtual std::vector<PresetRecord> get_presets ();
 
 	/** @return Last preset to be requested; the settings may have
 	 * been changed since; find out with parameter_changed_since_last_preset.