diff --git a/libs/ardour/vst3_plugin.cc b/libs/ardour/vst3_plugin.cc
index 8119ca50e3..a55de497fc 100644
--- a/libs/ardour/vst3_plugin.cc
+++ b/libs/ardour/vst3_plugin.cc
@@ -1279,6 +1279,8 @@ VST3PI::queryInterface (const TUID _iid, void** obj)
 	QUERY_INTERFACE (_iid, obj, Presonus::IContextInfoProvider2::iid, Presonus::IContextInfoProvider2)
 	QUERY_INTERFACE (_iid, obj, Presonus::IContextInfoProvider3::iid, Presonus::IContextInfoProvider3)
 
+	QUERY_INTERFACE (_iid, obj, IPlugFrame::iid, IPlugFrame)
+
 #if SMTG_OS_LINUX
 	if (_run_loop && FUnknownPrivate::iidEqual (_iid, Linux::IRunLoop::iid)) {
 		*obj = _run_loop;