diff --git a/src/ProjectTemplates/test/Templates.Tests/BaselineTest.cs b/src/ProjectTemplates/test/Templates.Tests/BaselineTest.cs
index 55a1bc3e091b..629a50c9c998 100644
--- a/src/ProjectTemplates/test/Templates.Tests/BaselineTest.cs
+++ b/src/ProjectTemplates/test/Templates.Tests/BaselineTest.cs
@@ -92,6 +92,7 @@ public async Task Template_Produces_The_Right_Set_Of_FilesAsync(string arguments
                 relativePath.EndsWith(".fsproj", StringComparison.Ordinal) ||
                 relativePath.EndsWith(".props", StringComparison.Ordinal) ||
                 relativePath.EndsWith(".sln", StringComparison.Ordinal) ||
+                relativePath.EndsWith(".slnx", StringComparison.Ordinal) ||
                 relativePath.EndsWith(".targets", StringComparison.Ordinal) ||
                 relativePath.StartsWith("bin/", StringComparison.Ordinal) ||
                 relativePath.StartsWith("obj/", StringComparison.Ordinal) ||