diff --git a/src/Microsoft.AspNetCore.Hosting/WebHostBuilder.cs b/src/Microsoft.AspNetCore.Hosting/WebHostBuilder.cs
index 197eee9ba2..416df78198 100644
--- a/src/Microsoft.AspNetCore.Hosting/WebHostBuilder.cs
+++ b/src/Microsoft.AspNetCore.Hosting/WebHostBuilder.cs
@@ -159,15 +159,8 @@ namespace Microsoft.AspNetCore.Hosting
             var hostingServices = BuildHostingServices();
             var hostingContainer = hostingServices.BuildServiceProvider();
 
-            var appEnvironment = hostingContainer.GetRequiredService<IApplicationEnvironment>();
             var startupLoader = hostingContainer.GetRequiredService<IStartupLoader>();
 
-            var contentRootPath = ResolveContentRootPath(_options.ContentRootPath, appEnvironment.ApplicationBasePath);
-            var applicationName = ResolveApplicationName() ?? appEnvironment.ApplicationName;
-
-            // Initialize the hosting environment
-            _hostingEnvironment.Initialize(applicationName, contentRootPath, _options);
-
             var host = new WebHost(hostingServices, startupLoader, _options, _config);
 
             // Only one of these should be set, but they are used in priority
@@ -184,6 +177,14 @@ namespace Microsoft.AspNetCore.Hosting
         {
             _options = new WebHostOptions(_config);
 
+            var defaultPlatformServices = PlatformServices.Default;
+            var appEnvironment = defaultPlatformServices.Application;
+            var contentRootPath = ResolveContentRootPath(_options.ContentRootPath, appEnvironment.ApplicationBasePath);
+            var applicationName = ResolveApplicationName() ?? appEnvironment.ApplicationName;
+
+            // Initialize the hosting environment
+            _hostingEnvironment.Initialize(applicationName, contentRootPath, _options);
+
             var services = new ServiceCollection();
             services.AddSingleton(_hostingEnvironment);
 
@@ -218,8 +219,6 @@ namespace Microsoft.AspNetCore.Hosting
             // Ensure object pooling is available everywhere.
             services.AddSingleton<ObjectPoolProvider, DefaultObjectPoolProvider>();
 
-            var defaultPlatformServices = PlatformServices.Default;
-
             services.AddSingleton(defaultPlatformServices.Application);
             services.AddSingleton(defaultPlatformServices.Runtime);