diff --git a/test/Microsoft.AspNetCore.Razor.Design.Test/IntegrationTests/CleanProjectIntegrationTest.cs b/test/Microsoft.AspNetCore.Razor.Design.Test/IntegrationTests/CleanProjectIntegrationTest.cs
index 83f34292c5..46f456ff5c 100644
--- a/test/Microsoft.AspNetCore.Razor.Design.Test/IntegrationTests/CleanProjectIntegrationTest.cs
+++ b/test/Microsoft.AspNetCore.Razor.Design.Test/IntegrationTests/CleanProjectIntegrationTest.cs
@@ -1,6 +1,7 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
+using System.IO;
 using System.Threading.Tasks;
 using Xunit;
 
@@ -15,8 +16,8 @@ namespace Microsoft.AspNetCore.Razor.Design.IntegrationTests
             var result = await DotnetMSBuild("Restore;Build", "/p:RazorCompileOnBuild=true");
 
             Assert.BuildPassed(result);
-            Assert.FileExists(result, @"bin/Debug/netcoreapp2.0/SimpleMvc.dll");
-            Assert.FileExists(result, @"bin/Debug/netcoreapp2.0/SimpleMvc.PrecompiledViews.dll");
+            Assert.FileExists(result, Path.Combine("bin", "Debug", "netcoreapp2.0", "SimpleMvc.dll"));
+            Assert.FileExists(result, Path.Combine("bin", "Debug", "netcoreapp2.0", "SimpleMvc.PrecompiledViews.dll"));
         }
     }
 }