diff --git a/src/stream_base-inl.h b/src/stream_base-inl.h
index 8857843a3b421b..23a3f6e8cd7c1c 100644
--- a/src/stream_base-inl.h
+++ b/src/stream_base-inl.h
@@ -30,26 +30,26 @@ void StreamBase::AddMethods(Environment* env,
 
   enum PropertyAttribute attributes =
       static_cast<PropertyAttribute>(v8::ReadOnly | v8::DontDelete);
-  t->InstanceTemplate()->SetAccessor(env->fd_string(),
-                                     GetFD<Base>,
-                                     nullptr,
-                                     env->as_external(),
-                                     v8::DEFAULT,
-                                     attributes);
-
-  t->InstanceTemplate()->SetAccessor(env->external_stream_string(),
-                                     GetExternal<Base>,
-                                     nullptr,
-                                     env->as_external(),
-                                     v8::DEFAULT,
-                                     attributes);
-
-  t->InstanceTemplate()->SetAccessor(env->bytes_read_string(),
-                                     GetBytesRead<Base>,
-                                     nullptr,
-                                     env->as_external(),
-                                     v8::DEFAULT,
-                                     attributes);
+  t->PrototypeTemplate()->SetAccessor(env->fd_string(),
+                                      GetFD<Base>,
+                                      nullptr,
+                                      env->as_external(),
+                                      v8::DEFAULT,
+                                      attributes);
+
+  t->PrototypeTemplate()->SetAccessor(env->external_stream_string(),
+                                      GetExternal<Base>,
+                                      nullptr,
+                                      env->as_external(),
+                                      v8::DEFAULT,
+                                      attributes);
+
+  t->PrototypeTemplate()->SetAccessor(env->bytes_read_string(),
+                                      GetBytesRead<Base>,
+                                      nullptr,
+                                      env->as_external(),
+                                      v8::DEFAULT,
+                                      attributes);
 
   env->SetProtoMethod(t, "readStart", JSMethod<Base, &StreamBase::ReadStart>);
   env->SetProtoMethod(t, "readStop", JSMethod<Base, &StreamBase::ReadStop>);
@@ -78,11 +78,10 @@ void StreamBase::AddMethods(Environment* env,
 template <class Base>
 void StreamBase::GetFD(Local<String> key,
                        const PropertyCallbackInfo<Value>& args) {
-  Base* handle = Unwrap<Base>(args.Holder());
-
   // Mimic implementation of StreamBase::GetFD() and UDPWrap::GetFD().
+  Base* handle;
   ASSIGN_OR_RETURN_UNWRAP(&handle,
-                          args.Holder(),
+                          args.This(),
                           args.GetReturnValue().Set(UV_EINVAL));
 
   StreamBase* wrap = static_cast<StreamBase*>(handle);
@@ -96,11 +95,10 @@ void StreamBase::GetFD(Local<String> key,
 template <class Base>
 void StreamBase::GetBytesRead(Local<String> key,
                               const PropertyCallbackInfo<Value>& args) {
-  Base* handle = Unwrap<Base>(args.Holder());
-
   // The handle instance hasn't been set. So no bytes could have been read.
+  Base* handle;
   ASSIGN_OR_RETURN_UNWRAP(&handle,
-                          args.Holder(),
+                          args.This(),
                           args.GetReturnValue().Set(0));
 
   StreamBase* wrap = static_cast<StreamBase*>(handle);
@@ -112,9 +110,8 @@ void StreamBase::GetBytesRead(Local<String> key,
 template <class Base>
 void StreamBase::GetExternal(Local<String> key,
                              const PropertyCallbackInfo<Value>& args) {
-  Base* handle = Unwrap<Base>(args.Holder());
-
-  ASSIGN_OR_RETURN_UNWRAP(&handle, args.Holder());
+  Base* handle;
+  ASSIGN_OR_RETURN_UNWRAP(&handle, args.This());
 
   StreamBase* wrap = static_cast<StreamBase*>(handle);
   Local<External> ext = External::New(args.GetIsolate(), wrap);
@@ -125,8 +122,7 @@ void StreamBase::GetExternal(Local<String> key,
 template <class Base,
           int (StreamBase::*Method)(const FunctionCallbackInfo<Value>& args)>
 void StreamBase::JSMethod(const FunctionCallbackInfo<Value>& args) {
-  Base* handle = Unwrap<Base>(args.Holder());
-
+  Base* handle;
   ASSIGN_OR_RETURN_UNWRAP(&handle, args.Holder());
 
   StreamBase* wrap = static_cast<StreamBase*>(handle);
diff --git a/src/udp_wrap.cc b/src/udp_wrap.cc
index 28970839afa0c3..7d2f8d7ebbbd5f 100644
--- a/src/udp_wrap.cc
+++ b/src/udp_wrap.cc
@@ -79,12 +79,12 @@ void UDPWrap::Initialize(Local<Object> target,
 
   enum PropertyAttribute attributes =
       static_cast<PropertyAttribute>(v8::ReadOnly | v8::DontDelete);
-  t->InstanceTemplate()->SetAccessor(env->fd_string(),
-                                     UDPWrap::GetFD,
-                                     nullptr,
-                                     env->as_external(),
-                                     v8::DEFAULT,
-                                     attributes);
+  t->PrototypeTemplate()->SetAccessor(env->fd_string(),
+                                      UDPWrap::GetFD,
+                                      nullptr,
+                                      env->as_external(),
+                                      v8::DEFAULT,
+                                      attributes);
 
   env->SetProtoMethod(t, "bind", Bind);
   env->SetProtoMethod(t, "send", Send);
@@ -137,7 +137,7 @@ void UDPWrap::New(const FunctionCallbackInfo<Value>& args) {
 void UDPWrap::GetFD(Local<String>, const PropertyCallbackInfo<Value>& args) {
   int fd = UV_EBADF;
 #if !defined(_WIN32)
-  UDPWrap* wrap = Unwrap<UDPWrap>(args.Holder());
+  UDPWrap* wrap = Unwrap<UDPWrap>(args.This());
   if (wrap != nullptr)
     uv_fileno(reinterpret_cast<uv_handle_t*>(&wrap->handle_), &fd);
 #endif