diff --git a/Assets/Cryville/Crtr/Extensions/Malody/MalodyChartConverter.cs b/Assets/Cryville/Crtr/Extensions/Malody/MalodyChartConverter.cs
index 0877e85..1a9a904 100644
--- a/Assets/Cryville/Crtr/Extensions/Malody/MalodyChartConverter.cs
+++ b/Assets/Cryville/Crtr/Extensions/Malody/MalodyChartConverter.cs
@@ -2,6 +2,7 @@ using Cryville.Crtr.Browsing;
 using Newtonsoft.Json;
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.IO;
 using System.Linq;
 
@@ -23,18 +24,23 @@ namespace Cryville.Crtr.Extensions.Malody {
 			if (src.meta.mode != 0) throw new NotImplementedException("The chart mode is not supported");
 			if (src.meta.mode_ext.column != 4) throw new NotImplementedException("The key count is not supported");
 
+			var ruleset = "malody!" + MODES[src.meta.mode];
+			if (src.meta.mode == 0) {
+				ruleset += "." + src.meta.mode_ext.column.ToString(CultureInfo.InvariantCulture) + "k";
+			}
+
 			ChartMeta meta = new ChartMeta() {
 				song = new ChartMeta.MetaInfo() {
 					name = src.meta.song.titleorg != null ? src.meta.song.titleorg : src.meta.song.title,
 					author = src.meta.song.artistorg != null ? src.meta.song.artistorg : src.meta.song.artist,
 				},
-				ruleset = "malody!" + MODES[src.meta.mode],
+				ruleset = ruleset,
 			};
 
 			Chart chart = new Chart {
 				format = 2,
 				time = new BeatTime(-4, 0, 1),
-				ruleset = "malody!" + MODES[src.meta.mode],
+				ruleset = ruleset,
 				sigs = new List<Chart.Signature>(),
 				sounds = new List<Chart.Sound>(),
 				motions = new List<Chart.Motion>(),