diff --git a/Examples/Razor/Razor.Playwright/TestSetup/TestBase.cs b/Examples/Razor/Razor.Playwright/TestSetup/TestBase.cs
index cc303b7..96ed4c6 100644
--- a/Examples/Razor/Razor.Playwright/TestSetup/TestBase.cs
+++ b/Examples/Razor/Razor.Playwright/TestSetup/TestBase.cs
@@ -32,7 +32,7 @@ public async Task AfterTestCase()
     {
         await Page.Context.CloseAsync();
         var path = await Page.Video!.PathAsync();
-        var folder = Path.GetDirectoryName(path);
+        var folder = Path.GetDirectoryName(path) ?? throw new InvalidOperationException($"Could not get folder for {path}");
         var newName = Path.Combine(folder, $"{TestContext.CurrentContext.Test.FullName}.webm");
         File.Move(path, newName, true);