diff --git a/src/node_process.cc b/src/node_process.cc
index c223b482cf4dbd..51041c49eda71b 100644
--- a/src/node_process.cc
+++ b/src/node_process.cc
@@ -208,7 +208,7 @@ void MemoryUsage(const FunctionCallbackInfo<Value>& args) {
   fields[0] = rss;
   fields[1] = v8_heap_stats.total_heap_size();
   fields[2] = v8_heap_stats.used_heap_size();
-  fields[3] = isolate->AdjustAmountOfExternalAllocatedMemory(0);
+  fields[3] = v8_heap_stats.external_memory();
 }
 
 // Most of the time, it's best to use `console.error` to write