diff --git a/include/v8.h b/include/v8.h
index 573e80176d..80bfd1d22a 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -7337,6 +7337,9 @@ class V8_EXPORT Isolate {
    */
   void SetIdle(bool is_idle);
 
+  /** Returns the ArrayBuffer::Allocator used in this isolate. */
+  ArrayBuffer::Allocator* GetArrayBufferAllocator();
+
   /** Returns true if this isolate has a current context. */
   bool InContext();
 
diff --git a/src/api.cc b/src/api.cc
index 8b177d041d..f58a350f0f 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -8139,6 +8139,13 @@ void Isolate::SetIdle(bool is_idle) {
   isolate->SetIdle(is_idle);
 }
 
+
+ArrayBuffer::Allocator* Isolate::GetArrayBufferAllocator() {
+  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this);
+  return isolate->array_buffer_allocator();
+}
+
+
 bool Isolate::InContext() {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this);
   return isolate->context() != nullptr;