diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpNetCoreClientCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpNetCoreClientCodegen.java
index 240fd2ab46c..00ea2907f6f 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpNetCoreClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpNetCoreClientCodegen.java
@@ -343,8 +343,6 @@ public class CSharpNetCoreClientCodegen extends AbstractCSharpCodegen {
         return "Generates a C# client library (.NET Standard, .NET Core).";
     }
 
-//    private void syncStringProperty(Map<String, Object> properties, String key)
-
     public String getModelPropertyNaming() {
         return this.modelPropertyNaming;
     }
@@ -641,6 +639,8 @@ public class CSharpNetCoreClientCodegen extends AbstractCSharpCodegen {
             supportingFiles.add(new SupportingFile("netcore_testproject.mustache", testPackageFolder, testPackageName + ".csproj"));
         }
 
+        supportingFiles.add(new SupportingFile("appveyor.mustache", "", "appveyor.yml"));
+
         additionalProperties.put("apiDocPath", apiDocPath);
         additionalProperties.put("modelDocPath", modelDocPath);
     }
diff --git a/modules/openapi-generator/src/main/resources/csharp-netcore/appveyor.mustache b/modules/openapi-generator/src/main/resources/csharp-netcore/appveyor.mustache
new file mode 100644
index 00000000000..eb85fc2a85b
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/csharp-netcore/appveyor.mustache
@@ -0,0 +1,9 @@
+# auto-generated by OpenAPI Generator (https://github.com/OpenAPITools/openapi-generator)
+#
+image: Visual Studio 2019
+clone_depth: 1
+build_script:
+- dotnet build -c Release
+- dotnet test -c Release
+after_build:
+- dotnet pack .\src\{{{packageName}}}\{{{packageName}}}.csproj -o ../../output -c Release --no-build
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/.openapi-generator/FILES b/samples/client/petstore/csharp-netcore/OpenAPIClient/.openapi-generator/FILES
index 9c04f2ea9cc..5aafbfa64d8 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/.openapi-generator/FILES
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/.openapi-generator/FILES
@@ -1,6 +1,7 @@
 .gitignore
 Org.OpenAPITools.sln
 README.md
+appveyor.yml
 docs/AdditionalPropertiesClass.md
 docs/Animal.md
 docs/AnotherFakeApi.md
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/appveyor.yml b/samples/client/petstore/csharp-netcore/OpenAPIClient/appveyor.yml
new file mode 100644
index 00000000000..f76f63cee50
--- /dev/null
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/appveyor.yml
@@ -0,0 +1,9 @@
+# auto-generated by OpenAPI Generator (https://github.com/OpenAPITools/openapi-generator)
+#
+image: Visual Studio 2019
+clone_depth: 1
+build_script:
+- dotnet build -c Release
+- dotnet test -c Release
+after_build:
+- dotnet pack .\src\Org.OpenAPITools\Org.OpenAPITools.csproj -o ../../output -c Release --no-build
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/.openapi-generator/FILES b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/.openapi-generator/FILES
index 9c04f2ea9cc..5aafbfa64d8 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/.openapi-generator/FILES
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/.openapi-generator/FILES
@@ -1,6 +1,7 @@
 .gitignore
 Org.OpenAPITools.sln
 README.md
+appveyor.yml
 docs/AdditionalPropertiesClass.md
 docs/Animal.md
 docs/AnotherFakeApi.md
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/appveyor.yml b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/appveyor.yml
new file mode 100644
index 00000000000..f76f63cee50
--- /dev/null
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/appveyor.yml
@@ -0,0 +1,9 @@
+# auto-generated by OpenAPI Generator (https://github.com/OpenAPITools/openapi-generator)
+#
+image: Visual Studio 2019
+clone_depth: 1
+build_script:
+- dotnet build -c Release
+- dotnet test -c Release
+after_build:
+- dotnet pack .\src\Org.OpenAPITools\Org.OpenAPITools.csproj -o ../../output -c Release --no-build