diff --git a/csharp/.vscode/settings.json b/csharp/.vscode/settings.json
index f41ad2872ff..559f9b16b98 100644
--- a/csharp/.vscode/settings.json
+++ b/csharp/.vscode/settings.json
@@ -10,5 +10,5 @@
     "omnisharp.enableRoslynAnalyzers": true,
     "csharpFormatUsings.splitGroups": false,
     "csharpFormatUsings.sortOrder": "Xunit System Microsoft Semmle.Util Semmle",
-    "dotnet.defaultSolution": "CSharp.sln"
-}
\ No newline at end of file
+    "dotnet.defaultSolution": "CSharp.slnx"
+}