diff --git a/CI/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj b/CI/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj
new file mode 100644
index 00000000000..e510bba3f59
--- /dev/null
+++ b/CI/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj
@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+OpenAPI Petstore
+
+This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+OpenAPI spec version: 1.0.0
+
+-->
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{19F1DEBC-DE5E-4517-8062-F000CD499087}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>Org.OpenAPITools.Test</RootNamespace>
+    <AssemblyName>Org.OpenAPITools.Test</AssemblyName>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.ComponentModel.DataAnnotations" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Runtime.Serialization" />
+    <Reference Include="System.Xml" />
+    <Reference Include="Newtonsoft.Json">
+        <HintPath Condition="Exists('$(SolutionDir)\packages')">$(SolutionDir)\packages\Newtonsoft.Json.10.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
+        <HintPath Condition="Exists('..\packages')">..\packages\Newtonsoft.Json.10.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
+        <HintPath Condition="Exists('..\..\packages')">..\..\packages\Newtonsoft.Json.10.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
+        <HintPath Condition="Exists('..\..\vendor')">..\..\vendor\Newtonsoft.Json.10.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
+    </Reference>
+    <Reference Include="JsonSubTypes">
+        <HintPath Condition="Exists('$(SolutionDir)\packages')">$(SolutionDir)\packages\JsonSubTypes.1.2.0\lib\net45\JsonSubTypes.dll</HintPath>
+        <HintPath Condition="Exists('..\packages')">..\packages\JsonSubTypes.1.2.0\lib\net45\JsonSubTypes.dll</HintPath>
+        <HintPath Condition="Exists('..\..\packages')">..\..\packages\JsonSubTypes.1.2.0\lib\net45\JsonSubTypes.dll</HintPath>
+        <HintPath Condition="Exists('..\..\vendor')">..\..\vendor\JsonSubTypes.1.2.0\lib\net45\JsonSubTypes.dll</HintPath>
+    </Reference>
+    <Reference Include="RestSharp">
+        <HintPath Condition="Exists('$(SolutionDir)\packages')">$(SolutionDir)\packages\RestSharp.105.1.0\lib\net45\RestSharp.dll</HintPath>
+        <HintPath Condition="Exists('..\packages')">..\packages\RestSharp.105.1.0\lib\net45\RestSharp.dll</HintPath>
+        <HintPath Condition="Exists('..\..\packages')">..\..\packages\RestSharp.105.1.0\lib\net45\RestSharp.dll</HintPath>
+        <HintPath Condition="Exists('..\..\vendor')">..\..\vendor\RestSharp.105.1.0\lib\net45\RestSharp.dll</HintPath>
+    </Reference>
+    <Reference Include="nunit.framework">
+        <HintPath Condition="Exists('$(SolutionDir)\packages')">$(SolutionDir)\packages\NUnit.2.6.4\lib\nunit.framework.dll</HintPath>
+        <HintPath Condition="Exists('..\packages')">..\packages\NUnit.2.6.4\lib\nunit.framework.dll</HintPath>
+        <HintPath Condition="Exists('..\..\packages')">..\..\packages\NUnit.2.6.4\lib\nunit.framework.dll</HintPath>
+        <HintPath Condition="Exists('..\..\vendor')">..\..\vendor\NUnit.2.6.4\lib\nunit.framework.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="**\*.cs" Exclude="obj\**" />
+  </ItemGroup>
+  <ItemGroup>
+      <None Include="packages.config" />
+  </ItemGroup>
+  <Import Project="$(MsBuildToolsPath)\Microsoft.CSharp.targets" />
+  <ItemGroup>
+      <ProjectReference Include="..\Org.OpenAPITools\Org.OpenAPITools.csproj">
+          <Project>{321C8C3F-0156-40C1-AE42-D59761FB9B6C}</Project>
+          <Name>Org.OpenAPITools</Name>
+      </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="linux-logo.png" />
+  </ItemGroup>
+</Project>
+
diff --git a/bin/csharp-petstore.sh b/bin/csharp-petstore.sh
index 54aa266185f..c64ec86ec83 100755
--- a/bin/csharp-petstore.sh
+++ b/bin/csharp-petstore.sh
@@ -29,4 +29,8 @@ fi
 export JAVA_OPTS="${JAVA_OPTS} -XX:MaxPermSize=256M -Xmx1024M -DloggerPath=conf/log4j.properties"
 ags="generate $@ -i modules/openapi-generator/src/test/resources/2_0/petstore-with-fake-endpoints-models-for-testing.yaml -l csharp -o samples/client/petstore/csharp/OpenAPIClient --additional-properties packageGuid={321C8C3F-0156-40C1-AE42-D59761FB9B6C}"
 
+# restore csproj file
+echo "restore csproject file: CI/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj"
+cp ./CI/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj ./samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools.Test/
+
 java $JAVA_OPTS -jar $executable $ags
diff --git a/bin/windows/csharp-petstore.bat b/bin/windows/csharp-petstore.bat
index 001d5e9ba76..48f652abed9 100755
--- a/bin/windows/csharp-petstore.bat
+++ b/bin/windows/csharp-petstore.bat
@@ -5,6 +5,11 @@ If Not Exist %executable% (
 )
 
 REM set JAVA_OPTS=%JAVA_OPTS% -Xmx1024M
-set ags=generate -i modules/openapi-generator/src/test/resources/2_0/petstore-with-fake-endpoints-models-for-testing.yaml -l csharp -o samples\client\petstore\csharp\SwaggerClient --additional-properties packageGuid={321C8C3F-0156-40C1-AE42-D59761FB9B6C}
+set ags=generate -i modules\openapi-generator\src\test/resources\2_0\petstore-with-fake-endpoints-models-for-testing.yaml -l csharp -o samples\client\petstore\csharp\SwaggerClient --additional-properties packageGuid={321C8C3F-0156-40C1-AE42-D59761FB9B6C}
 
 java %JAVA_OPTS% -jar %executable% %ags%
+
+# restore csproj file
+echo "restore csproject file: CI\samples\client\petstore\csharp\OpenAPIClient\src\Org.OpenAPITools.Test\Org.OpenAPITools.Test.csproj"
+copy .\CI\samples\client\petstore\csharp\OpenAPIClient\src\Org.OpenAPITools.Test\Org.OpenAPITools.Test.csproj .\samples\client\petstore\csharp\OpenAPIClient\src\Org.OpenAPITools.Test\
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj
index 48ec5e0f7c1..e510bba3f59 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj
@@ -72,8 +72,7 @@ OpenAPI spec version: 1.0.0
     </Reference>
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="**\*.cs"
-             Exclude="obj\**"/>
+    <Compile Include="**\*.cs" Exclude="obj\**" />
   </ItemGroup>
   <ItemGroup>
       <None Include="packages.config" />
@@ -85,5 +84,8 @@ OpenAPI spec version: 1.0.0
           <Name>Org.OpenAPITools</Name>
       </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="linux-logo.png" />
+  </ItemGroup>
 </Project>