diff --git a/nan_callbacks_12_inl.h b/nan_callbacks_12_inl.h
index 61944cf1..ac02cf16 100644
--- a/nan_callbacks_12_inl.h
+++ b/nan_callbacks_12_inl.h
@@ -338,7 +338,7 @@ static
 v8::Intercepted PropertySetterCallbackWrapper(
     v8::Local<v8::Name> property
   , v8::Local<v8::Value> value
-  , const v8::PropertyCallbackInfo<v8::Value> &info) {
+  , const v8::PropertyCallbackInfo<void> &info) {
   v8::Local<v8::Object> obj = info.Data().As<v8::Object>();
   PropertyCallbackInfo<v8::Value>
       cbinfo(info, obj->GetInternalField(kDataIndex).As<v8::Value>());
@@ -356,7 +356,7 @@ v8::Intercepted PropertySetterCallbackWrapper(
 typedef v8::Intercepted (*NativePropertySetter)(
     v8::Local<v8::Name>
   , v8::Local<v8::Value>
-  , const v8::PropertyCallbackInfo<v8::Value> &);
+  , const v8::PropertyCallbackInfo<void> &);
 #else
 static
 void PropertySetterCallbackWrapper(
@@ -622,7 +622,7 @@ static
 v8::Intercepted IndexSetterCallbackWrapper(
     uint32_t index
   , v8::Local<v8::Value> value
-  , const v8::PropertyCallbackInfo<v8::Value> &info) {
+  , const v8::PropertyCallbackInfo<void> &info) {
   v8::Local<v8::Object> obj = info.Data().As<v8::Object>();
   PropertyCallbackInfo<v8::Value>
       cbinfo(info, obj->GetInternalField(kDataIndex).As<v8::Value>());
@@ -640,7 +640,7 @@ v8::Intercepted IndexSetterCallbackWrapper(
 typedef v8::Intercepted (*NativeIndexSetter)(
     uint32_t
   , v8::Local<v8::Value>
-  , const v8::PropertyCallbackInfo<v8::Value> &);
+  , const v8::PropertyCallbackInfo<void> &);
 #else
 static
 void IndexSetterCallbackWrapper(