diff --git a/sandbox/GeneratorSandbox/GeneratorSandbox.csproj b/sandbox/GeneratorSandbox/GeneratorSandbox.csproj
index 7a583a9..24c9fbe 100644
--- a/sandbox/GeneratorSandbox/GeneratorSandbox.csproj
+++ b/sandbox/GeneratorSandbox/GeneratorSandbox.csproj
@@ -4,7 +4,7 @@
 		<OutputType>Exe</OutputType>
 		<TargetFramework>net8.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
-		<Nullable>enable</Nullable>
+		<Nullable>disable</Nullable>
 		<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
 		<NoWarn>1701;1702;CS8321</NoWarn>
 		<IsPackable>false</IsPackable>
diff --git a/sandbox/GeneratorSandbox/Program.cs b/sandbox/GeneratorSandbox/Program.cs
index f9b6664..86d3911 100644
--- a/sandbox/GeneratorSandbox/Program.cs
+++ b/sandbox/GeneratorSandbox/Program.cs
@@ -31,7 +31,8 @@ public void Handle(
         bool a16,
         bool a17,
         bool a18,
-        bool a19
+        bool a19,
+        string foo = null
     )
     {
         Console.Write("ok");
diff --git a/src/ConsoleAppFramework/ConsoleAppGenerator.cs b/src/ConsoleAppFramework/ConsoleAppGenerator.cs
index 56468e5..14d78c6 100644
--- a/src/ConsoleAppFramework/ConsoleAppGenerator.cs
+++ b/src/ConsoleAppFramework/ConsoleAppGenerator.cs
@@ -556,6 +556,7 @@ static void EmitConsoleAppTemplateSource(IncrementalGeneratorPostInitializationC
 #pragma warning disable CS9074 // The 'scoped' modifier of parameter doesn't match overridden or implemented member
 #pragma warning disable CA1050 // Declare types in namespaces.
 #pragma warning disable CS1998
+#pragma warning disable CS8625
         
 namespace ConsoleAppFramework;