diff --git a/scripts/_vamp_note_example.lua b/scripts/_vamp_note_example.lua
index 5f0c27b94d..6a93dd8ee4 100644
--- a/scripts/_vamp_note_example.lua
+++ b/scripts/_vamp_note_example.lua
@@ -15,7 +15,7 @@ function factory () return function ()
 	-- prepare progress dialog
 	local progress_total = 0;
 	local progress_part = 0
-	local pdialog = LuaDialog.LuaProgressWindow ("Audio to MIDI", true)
+	local pdialog = LuaDialog.ProgressWindow ("Audio to MIDI", true)
 	function cb (_, pos)
 		return pdialog:progress ((pos + progress_part) / progress_total, "Analyzing")
 	end
diff --git a/scripts/vamp_audio_to_midi.lua b/scripts/vamp_audio_to_midi.lua
index 8fdbd36d56..b7db5d6dce 100644
--- a/scripts/vamp_audio_to_midi.lua
+++ b/scripts/vamp_audio_to_midi.lua
@@ -45,7 +45,7 @@ function factory () return function ()
 	midi_region:set_initial_position(start_time)
 	midi_region:set_length(end_time - start_time, 0)
 
-	local pdialog = LuaDialog.LuaProgressWindow ("Audio to MIDI", true)
+	local pdialog = LuaDialog.ProgressWindow ("Audio to MIDI", true)
 	function progress (_, pos)
 		return pdialog:progress ((cur_pos + pos) / max_pos, "Analyzing")
 	end