diff --git a/src/benchmarks/micro/MicroBenchmarks.Wasm.props b/src/benchmarks/micro/MicroBenchmarks.Wasm.props
index cf54c7e4662..a0ae1ba984e 100644
--- a/src/benchmarks/micro/MicroBenchmarks.Wasm.props
+++ b/src/benchmarks/micro/MicroBenchmarks.Wasm.props
@@ -3,5 +3,6 @@
     <WasmGenerateRunV8Script>true</WasmGenerateRunV8Script>
     <WasmMainJSPath>$(WasmDataDir)\test-main.js</WasmMainJSPath>
     <TrimMode>partial</TrimMode>
+    <JsonSerializerIsReflectionEnabledByDefault>true</JsonSerializerIsReflectionEnabledByDefault>
   </PropertyGroup>
 </Project>