diff --git a/Editor/BuildProcess/ObfuzProcess.cs b/Editor/BuildProcess/ObfuzProcess.cs
index 9a549d0..61d1b6f 100644
--- a/Editor/BuildProcess/ObfuzProcess.cs
+++ b/Editor/BuildProcess/ObfuzProcess.cs
@@ -69,7 +69,7 @@ namespace Obfuz
                    backupPlayerScriptAssembliesPath,
                 },
                 ObfuscationRuleFiles = settings.aotRuleFiles.ToList(),
-                mappingXmlPath = settings.GetMappingFile(buildTarget),
+                mappingXmlPath = settings.mappingFile,
                 outputDir = ObfuzSettings.Instance.GetObfuscatedAssemblyOutputDir(buildTarget),
             };
             var obfuz = new Obfuscator(opt);
diff --git a/Editor/Settings/ObfuzSettingProvider.cs b/Editor/Settings/ObfuzSettingProvider.cs
index d6f7f50..1e60a03 100644
--- a/Editor/Settings/ObfuzSettingProvider.cs
+++ b/Editor/Settings/ObfuzSettingProvider.cs
@@ -29,6 +29,7 @@ namespace Obfuz
 
         private SerializedObject _serializedObject;
         private SerializedProperty _enable;
+        private SerializedProperty _mappingFile;
         private SerializedProperty _aotRuleFiles;
         private SerializedProperty _hotUpdateRuleFiles;
 
@@ -48,6 +49,7 @@ namespace Obfuz
             _serializedObject?.Dispose();
             _serializedObject = new SerializedObject(setting);
             _enable = _serializedObject.FindProperty("enable");
+            _mappingFile = _serializedObject.FindProperty("mappingFile");
             _aotRuleFiles = _serializedObject.FindProperty("aotRuleFiles");
             _hotUpdateRuleFiles = _serializedObject.FindProperty("hotUpdateRuleFiles");
         }
@@ -70,6 +72,7 @@ namespace Obfuz
                 EditorGUI.BeginChangeCheck();
 
                 EditorGUILayout.PropertyField(_enable);
+                EditorGUILayout.PropertyField(_mappingFile);
                 EditorGUILayout.PropertyField(_aotRuleFiles);
                 EditorGUILayout.PropertyField(_hotUpdateRuleFiles);
 
diff --git a/Editor/Settings/ObfuzSettings.cs b/Editor/Settings/ObfuzSettings.cs
index a7310f2..8aa9842 100644
--- a/Editor/Settings/ObfuzSettings.cs
+++ b/Editor/Settings/ObfuzSettings.cs
@@ -1,4 +1,5 @@
 using System.IO;
+using System.Runtime.Remoting.Messaging;
 using UnityEditor;
 using UnityEditorInternal;
 using UnityEngine;
@@ -11,6 +12,9 @@ namespace Obfuz
         [Tooltip("enable Obfuz")]
         public bool enable = true;
 
+        [Tooltip("path of mapping.xml")]
+        public string mappingFile = "Assets/Obfuz/mapping.xml";
+
         [Tooltip("obfuscation rule files for aot assemblies")]
         public string[] aotRuleFiles;
 
@@ -19,11 +23,6 @@ namespace Obfuz
 
         public string ObfuzRootDir => $"Library/Obfuz";
 
-        public string GetMappingFile(BuildTarget target)
-        {
-            return $"{ObfuzRootDir}/{target}/mapping.xml";
-        }
-
         public string GetObfuscatedAssemblyOutputDir(BuildTarget target)
         {
             return $"{ObfuzRootDir}/{target}/ObfuscatedAssemblies";