diff --git a/packages/react-native-codegen/src/generators/modules/GenerateModuleMm.js b/packages/react-native-codegen/src/generators/modules/GenerateModuleMm.js
index d56905285be..5cc4912aeec 100644
--- a/packages/react-native-codegen/src/generators/modules/GenerateModuleMm.js
+++ b/packages/react-native-codegen/src/generators/modules/GenerateModuleMm.js
@@ -36,7 +36,7 @@ const moduleTemplate = `
 
 Native::_MODULE_NAME_::SpecJSI::Native::_MODULE_NAME_::SpecJSI(id<RCTTurboModule> instance, std::shared_ptr<JSCallInvoker> jsInvoker)
   : ObjCTurboModule("::_MODULE_NAME_::", instance, jsInvoker) {
-::_PROPERTIES_MAP_::
+::_PROPERTIES_MAP_::::_CONVERSION_SELECTORS_::
 }`.trim();
 
 const getterTemplate = `
@@ -48,6 +48,9 @@ const getterTemplate = `
 @end
 `.trim();
 
+const argConvertionTemplate =
+  '\n  setMethodArgConversionSelector(@"::_ARG_NAME_::", ::_ARG_NUMBER_::, @"JS_Native::_MODULE_NAME_::_Spec::_SELECTOR_NAME_:::");';
+
 const template = `
 /**
  * Copyright (c) Facebook, Inc. and its affiliates.
@@ -221,6 +224,28 @@ module.exports = {
               )
               .join('\n'),
           )
+          .replace(
+            '::_CONVERSION_SELECTORS_::',
+            properties
+              .map(({name: propertyName, typeAnnotation: {params}}) =>
+                params
+                  .map((param, index) =>
+                    param.typeAnnotation.type === 'ObjectTypeAnnotation' &&
+                    param.typeAnnotation.properties
+                      ? argConvertionTemplate
+                          .replace(
+                            '::_SELECTOR_NAME_::',
+                            capitalizeFirstLetter(propertyName) +
+                              capitalizeFirstLetter(param.name),
+                          )
+                          .replace('::_ARG_NUMBER_::', index.toString())
+                          .replace('::_ARG_NAME_::', propertyName)
+                      : '',
+                  )
+                  .join(''),
+              )
+              .join(''),
+          )
           .replace(/::_MODULE_NAME_::/g, name);
       })
       .join('\n');
diff --git a/packages/react-native-codegen/src/generators/modules/__tests__/__snapshots__/GenerateModuleMm-test.js.snap b/packages/react-native-codegen/src/generators/modules/__tests__/__snapshots__/GenerateModuleMm-test.js.snap
index 7ce647467ad..2ae851ffa5f 100644
--- a/packages/react-native-codegen/src/generators/modules/__tests__/__snapshots__/GenerateModuleMm-test.js.snap
+++ b/packages/react-native-codegen/src/generators/modules/__tests__/__snapshots__/GenerateModuleMm-test.js.snap
@@ -40,6 +40,7 @@ static facebook::jsi::Value __hostFunction_NativeSampleTurboModuleSpecJSI_diffic
 NativeSampleTurboModuleSpecJSI::NativeSampleTurboModuleSpecJSI(id<RCTTurboModule> instance, std::shared_ptr<JSCallInvoker> jsInvoker)
   : ObjCTurboModule(\\"SampleTurboModule\\", instance, jsInvoker) {
   methodMap_[\\"difficult\\"] = MethodMetadata {1, __hostFunction_NativeSampleTurboModuleSpecJSI_difficult};
+  setMethodArgConversionSelector(@\\"difficult\\", 0, @\\"JS_NativeSampleTurboModule_SpecDifficultA:\\");
 }