diff --git a/src/node_platform.cc b/src/node_platform.cc
index e2c5aa230d09b1..c15a95128e9d3f 100644
--- a/src/node_platform.cc
+++ b/src/node_platform.cc
@@ -409,6 +409,9 @@ void PerIsolatePlatformData::RunForegroundTask(std::unique_ptr<Task> task) {
                                    InternalCallbackScope::kNoFlags);
     task->Run();
   } else {
+    // The task is moved out of InternalCallbackScope if env is not available.
+    // This is a required else block, and should not be removed.
+    // See comment: https://github.com/nodejs/node/pull/34688#pullrequestreview-463867489
     task->Run();
   }
 }