diff --git a/src/benchmarks/micro/corefx/System.Text.Json/Serializer/WriteJson.cs b/src/benchmarks/micro/corefx/System.Text.Json/Serializer/WriteJson.cs
index 0bdc7faa8a0..8cdf9d42d08 100644
--- a/src/benchmarks/micro/corefx/System.Text.Json/Serializer/WriteJson.cs
+++ b/src/benchmarks/micro/corefx/System.Text.Json/Serializer/WriteJson.cs
@@ -28,6 +28,7 @@ public class WriteJson<T>
     {
         private T _value;
         private MemoryStream _memoryStream;
+        private object _objectWithObjectProperty;
 
         [GlobalSetup]
         public async Task Setup()
@@ -36,6 +37,8 @@ public async Task Setup()
 
             _memoryStream = new MemoryStream(capacity: short.MaxValue);
             await JsonSerializer.SerializeAsync(_memoryStream, _value);
+
+            _objectWithObjectProperty = new { Prop = (object)_value };
         }
 
         [BenchmarkCategory(Categories.CoreFX, Categories.JSON)]
@@ -54,6 +57,10 @@ public async Task SerializeToStream()
             await JsonSerializer.SerializeAsync(_memoryStream, _value);
         }
 
+        [BenchmarkCategory(Categories.CoreFX, Categories.JSON)]
+        [Benchmark]
+        public string SerializeObjectProperty() => JsonSerializer.Serialize(_objectWithObjectProperty);
+
         [GlobalCleanup]
         public void Cleanup() => _memoryStream.Dispose();
     }