diff --git a/src/node.cc b/src/node.cc
index 7a121783df..4565b7dff3 100644
--- a/src/node.cc
+++ b/src/node.cc
@@ -4679,6 +4679,10 @@ int EmitExit(Environment* env) {
 }
 
 
+IsolateData* CreateIsolateData(Isolate* isolate, uv_loop_t* loop) {
+  return new IsolateData(isolate, loop, nullptr);
+}
+
 IsolateData* CreateIsolateData(
     Isolate* isolate,
     uv_loop_t* loop,
diff --git a/src/node.h b/src/node.h
index 97d80cf18c..7cc46efb4a 100644
--- a/src/node.h
+++ b/src/node.h
@@ -223,10 +223,13 @@ class WorkerSupportingPlatform : public v8::Platform {
 
 // If `platform` is passed, it will be used to register new worker instances.
 // It can be `nullptr`, in which case creating new workers will not work.
+NODE_EXTERN IsolateData* CreateIsolateData(
+    v8::Isolate* isolate,
+    struct uv_loop_s* loop);
 NODE_EXTERN IsolateData* CreateIsolateData(
     v8::Isolate* isolate,
     struct uv_loop_s* loop,
-    WorkerSupportingPlatform* platform = nullptr);
+    WorkerSupportingPlatform* platform);
 NODE_EXTERN void FreeIsolateData(IsolateData* isolate_data);
 
 NODE_EXTERN Environment* CreateEnvironment(IsolateData* isolate_data,