diff --git a/src/Http/Http/src/Builder/ApplicationBuilder.cs b/src/Http/Http/src/Builder/ApplicationBuilder.cs
index 1a08127d08..071e04dc8c 100644
--- a/src/Http/Http/src/Builder/ApplicationBuilder.cs
+++ b/src/Http/Http/src/Builder/ApplicationBuilder.cs
@@ -96,7 +96,7 @@ namespace Microsoft.AspNetCore.Builder
                     throw new InvalidOperationException(message);
                 }
 
-                context.Response.StatusCode = 404;
+                context.Response.StatusCode = StatusCodes.Status404NotFound;
                 return Task.CompletedTask;
             };