diff --git a/Assets/Cryville/Crtr/Extension/RefTypes.cs b/Assets/Cryville/Crtr/Extension/RefTypes.cs
index d521662..ca07bde 100644
--- a/Assets/Cryville/Crtr/Extension/RefTypes.cs
+++ b/Assets/Cryville/Crtr/Extension/RefTypes.cs
@@ -1,4 +1,6 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using System.Globalization;
 using System.IO;
 using System.Linq;
 using UnityEngine.Scripting;
@@ -96,5 +98,10 @@ namespace Cryville.Crtr.Extension {
 			p.ReadLine();
 			p.ReadToEnd();
 		}
+		[Preserve]
+		public static void PreserveConvert() {
+			Convert.ChangeType(0, typeof(byte));
+			Convert.ChangeType(0, typeof(byte), CultureInfo.InvariantCulture);
+		}
 	}
 }