diff --git a/src/dotnetCampus.Logger/LoggerInterpolatedStringHandler.g.cs b/src/dotnetCampus.Logger/LoggerInterpolatedStringHandler.g.cs
index 92b1dd5..125cce5 100644
--- a/src/dotnetCampus.Logger/LoggerInterpolatedStringHandler.g.cs
+++ b/src/dotnetCampus.Logger/LoggerInterpolatedStringHandler.g.cs
@@ -11,17 +11,37 @@ public LoggerInterpolatedStringHandler(int literalLength, int formattedCount)
         _handler = new DefaultInterpolatedStringHandler(literalLength, formattedCount);
     }
 
-    private readonly DefaultInterpolatedStringHandler _handler;
+    private DefaultInterpolatedStringHandler _handler;
 
-    public void AppendLiteral(string s) => _handler.AppendLiteral(s);
+    public void AppendLiteral(string s)
+    {
+        ref var handler = ref _handler;
+        handler.AppendLiteral(s);
+    }
 
-    public void AppendFormatted<T>(T value) => _handler.AppendFormatted(value);
+    public void AppendFormatted<T>(T value)
+    {
+        ref var handler = ref _handler;
+        handler.AppendFormatted(value);
+    }
 
-    public void AppendFormatted<T>(T value, string format) => _handler.AppendFormatted(value, format);
+    public void AppendFormatted<T>(T value, string format)
+    {
+        ref var handler = ref _handler;
+        handler.AppendFormatted(value, format);
+    }
 
-    public string ToStringAndClear() => _handler.ToStringAndClear();
+    public string ToStringAndClear()
+    {
+        ref var handle = ref _handler;
+        return handle.ToStringAndClear();
+    }
 
-    public override string ToString() => _handler.ToString();
+    public override string ToString()
+    {
+        ref var handler = ref _handler;
+        return handler.ToString();
+    }
 
     /// <summary>
     /// 废弃掉此字符串
@@ -30,7 +50,8 @@ public void Discard()
     {
         // 这里的 ToStringAndClear 其实只是取其 Clear 的功能
         // 暂时先使用 DefaultInterpolatedStringHandler 提供的能力，后续再考虑是否需要优化
-        _handler.ToStringAndClear();
+        ref var handler = ref _handler;
+        handler.ToStringAndClear();
     }
 }