diff --git a/WorkspaceServer.Tests/AspNetWorkspaceTests.cs b/WorkspaceServer.Tests/AspNetWorkspaceTests.cs
index 5081e6a68..758020b05 100644
--- a/WorkspaceServer.Tests/AspNetWorkspaceTests.cs
+++ b/WorkspaceServer.Tests/AspNetWorkspaceTests.cs
@@ -38,7 +38,8 @@ public async Task Run_starts_the_kestrel_server_and_provides_a_WebServer_feature
         {
             var registry = Default.PackageFinder;
             var server = new RoslynWorkspaceServer(registry);
-            var package = await registry.Get<IHaveADirectory>("aspnet.webapi");
+            var package = await registry.Get<Package>("aspnet.webapi");
+            await package.CreateRoslynWorkspaceAsync(new Budget()); // ensure the package exists on disk
 
             var workspace = WorkspaceFactory.CreateWorkspaceFromDirectory(package.Directory, "aspnet.webapi");