diff --git a/dotnet/GitHub.Copilot.SDK.sln b/dotnet/GitHub.Copilot.SDK.sln
deleted file mode 100644
index 98ef0254..00000000
--- a/dotnet/GitHub.Copilot.SDK.sln
+++ /dev/null
@@ -1,56 +0,0 @@
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diff --git a/dotnet/GitHub.Copilot.SDK.slnx b/dotnet/GitHub.Copilot.SDK.slnx
new file mode 100644
index 00000000..1b82fb55
--- /dev/null
+++ b/dotnet/GitHub.Copilot.SDK.slnx
@@ -0,0 +1,13 @@
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+    <Platform Name="x64" />
+    <Platform Name="x86" />
+  </Configurations>
+  <Folder Name="/src/">
+    <Project Path="src/GitHub.Copilot.SDK.csproj" />
+  </Folder>
+  <Folder Name="/test/">
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+  </Folder>
+</Solution>