diff --git a/Assets/EFSDK/Editor/AndroidResAarBuilder.cs b/Assets/EFSDK/Editor/AndroidResAarBuilder.cs
index 68555aa..cf54466 100755
--- a/Assets/EFSDK/Editor/AndroidResAarBuilder.cs
+++ b/Assets/EFSDK/Editor/AndroidResAarBuilder.cs
@@ -32,8 +32,8 @@ namespace EFSDK
             CopyAndRenameFiles(ResDir, TempDir, out Dictionary<string, string> mapping);
             string manifestPath = Path.Combine(TempDir, "AndroidManifest.xml");
             File.WriteAllText(manifestPath,
-                @"<manifest xmlns:android=""http://schemas.android.com/apk/res/android""
-    package=""com.unity.reswrapper"">
+                @$"<manifest xmlns:android=""http://schemas.android.com/apk/res/android""
+    package=""com.{GetFirstEightWithUnderscore(GetMD5Hash(Application.identifier + "res"))}"">
     <application/>
 </manifest>");
 
@@ -131,9 +131,10 @@ namespace EFSDK
         {
             string ext = Path.GetExtension(filePath);
             string oriFileName = Path.GetFileNameWithoutExtension(filePath);
-            string md5Str = GetFirstEightWithUnderscore(GetMD5Hash(Application.identifier + oriFileName+ oriFileName));
+            string md5Str = GetFirstEightWithUnderscore(GetMD5Hash(Application.identifier + oriFileName + oriFileName));
             return md5Str + ext;
         }
+
         static string GetFirstEightWithUnderscore(string str)
         {
             if (string.IsNullOrEmpty(str)) return str;
@@ -142,8 +143,10 @@ namespace EFSDK
             {
                 sub = "a" + sub;
             }
+
             return sub;
         }
+
         public static string GetMD5Hash(string input)
         {
             using (var md5 = MD5.Create())