diff --git a/framework/test/Volo.Abp.AspNetCore.Mvc.Tests/Volo/Abp/AspNetCore/Mvc/Startup.cs b/framework/test/Volo.Abp.AspNetCore.Mvc.Tests/Volo/Abp/AspNetCore/Mvc/Startup.cs
index e26e6ce2c3..04d03bb570 100644
--- a/framework/test/Volo.Abp.AspNetCore.Mvc.Tests/Volo/Abp/AspNetCore/Mvc/Startup.cs
+++ b/framework/test/Volo.Abp.AspNetCore.Mvc.Tests/Volo/Abp/AspNetCore/Mvc/Startup.cs
@@ -18,7 +18,7 @@ public class Startup
             var plugDllInPath = Path.Combine(hostEnvironment.ContentRootPath,
                 @"..\..\..\..\..\Volo.Abp.AspNetCore.Mvc.PlugIn\bin\Debug\net6.0\");
 #else
-            plugDllInPath = Path.Combine(_env.ContentRootPath,
+            var plugDllInPath = Path.Combine(hostEnvironment.ContentRootPath,
                 @"..\..\..\..\..\Volo.Abp.AspNetCore.Mvc.PlugIn\bin\Release\net6.0\");
 #endif