diff --git a/dotnet/src/AutoGen.DotnetInteractive/DotnetInteractiveKernelBuilder.cs b/dotnet/src/AutoGen.DotnetInteractive/DotnetInteractiveKernelBuilder.cs
index 8d1f5ec8fa31..98b3e547d7d2 100644
--- a/dotnet/src/AutoGen.DotnetInteractive/DotnetInteractiveKernelBuilder.cs
+++ b/dotnet/src/AutoGen.DotnetInteractive/DotnetInteractiveKernelBuilder.cs
@@ -14,7 +14,9 @@ public static InProccessDotnetInteractiveKernelBuilder CreateEmptyInProcessKerne
 
     public static InProccessDotnetInteractiveKernelBuilder CreateDefaultInProcessKernelBuilder()
     {
-        return new InProccessDotnetInteractiveKernelBuilder();
+        return new InProccessDotnetInteractiveKernelBuilder()
+            .AddCSharpKernel()
+            .AddFSharpKernel();
     }
 #endif