diff --git a/src/Servers/Kestrel/perf/PlatformBenchmarks/BenchmarkApplication.cs b/src/Servers/Kestrel/perf/PlatformBenchmarks/BenchmarkApplication.cs
index 25382fe7b0..6da811b99a 100644
--- a/src/Servers/Kestrel/perf/PlatformBenchmarks/BenchmarkApplication.cs
+++ b/src/Servers/Kestrel/perf/PlatformBenchmarks/BenchmarkApplication.cs
@@ -3,6 +3,7 @@
 
 using System;
 using System.IO.Pipelines;
+using System.Text.Json;
 using System.Text.Json.Serialization;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http;