diff --git a/test/addons/dlopen-ping-pong/binding.cc b/test/addons/dlopen-ping-pong/binding.cc
index b35db4e708d..a3b9af1b809 100644
--- a/test/addons/dlopen-ping-pong/binding.cc
+++ b/test/addons/dlopen-ping-pong/binding.cc
@@ -23,7 +23,7 @@ typedef const char* (*ping)(void);
 static ping ping_func;
 
 void LoadLibrary(const FunctionCallbackInfo<Value>& args) {
-  const String::Utf8Value filename(args[0]);
+  const String::Utf8Value filename(args.GetIsolate(), args[0]);
   void* handle = dlopen(*filename, RTLD_LAZY);
   assert(handle != nullptr);
   ping_func = reinterpret_cast<ping>(dlsym(handle, "dlopen_ping"));