diff --git a/shadowsocks-csharp/Model/Configuration.cs b/shadowsocks-csharp/Model/Configuration.cs
index fdc7294..e81c2c1 100755
--- a/shadowsocks-csharp/Model/Configuration.cs
+++ b/shadowsocks-csharp/Model/Configuration.cs
@@ -43,11 +43,8 @@ namespace shadowsocks_csharp.Model
         {
             try
             {
-                var json = "[0,1,2]";
-                var result = SimpleJson.SimpleJson.DeserializeObject<List<int>>(json);
-
                 string configContent = File.ReadAllText(CONFIG_FILE);
-                Configuration config = SimpleJson.SimpleJson.DeserializeObject<Configuration>(configContent);
+                Configuration config = SimpleJson.SimpleJson.DeserializeObject<Configuration>(configContent, new JsonSerializerStrategy());
                 config.isDefault = false;
                 return config;
             }
@@ -129,5 +126,18 @@ namespace shadowsocks_csharp.Model
                 throw new ArgumentException("server can not be blank");
             }
         }
+
+        private class JsonSerializerStrategy : SimpleJson.PocoJsonSerializerStrategy
+        {
+            // convert string to int
+            public override object DeserializeObject(object value, Type type)
+            {
+                if (type == typeof(Int32) && value.GetType() == typeof(string))
+                {
+                    return Int32.Parse(value.ToString());
+                }
+                return base.DeserializeObject(value, type);
+            }
+        }
     }
 }
diff --git a/shadowsocks-csharp/shadowsocks-csharp.csproj b/shadowsocks-csharp/shadowsocks-csharp.csproj
index 854836e..ca356a6 100755
--- a/shadowsocks-csharp/shadowsocks-csharp.csproj
+++ b/shadowsocks-csharp/shadowsocks-csharp.csproj
@@ -60,7 +60,7 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
     <DebugSymbols>true</DebugSymbols>
     <OutputPath>bin\x86\Debug\</OutputPath>
-    <DefineConstants>TRACE;DEBUG</DefineConstants>
+    <DefineConstants>TRACE;DEBUG;SIMPLE_JSON_REFLECTIONEMIT</DefineConstants>
     <DebugType>full</DebugType>
     <PlatformTarget>x86</PlatformTarget>
     <ErrorReport>prompt</ErrorReport>
diff --git a/shadowsocks-csharp/simple-json b/shadowsocks-csharp/simple-json
index 663c62a..6b632fd 160000
--- a/shadowsocks-csharp/simple-json
+++ b/shadowsocks-csharp/simple-json
@@ -1 +1 @@
-Subproject commit 663c62a77ab3318f04ddb9449b2b882364709625
+Subproject commit 6b632fd304736788227e709b87e5bcf59bb4911d