diff --git a/src/node_worker.cc b/src/node_worker.cc
index 8c4ea611672cd5..913b5e3a8bd306 100644
--- a/src/node_worker.cc
+++ b/src/node_worker.cc
@@ -16,7 +16,6 @@ using node::kAllowedInEnvironment;
 using node::kDisallowedInEnvironment;
 using v8::Array;
 using v8::ArrayBuffer;
-using v8::BackingStore;
 using v8::Boolean;
 using v8::Context;
 using v8::Float64Array;
@@ -27,7 +26,6 @@ using v8::Integer;
 using v8::Isolate;
 using v8::Local;
 using v8::Locker;
-using v8::Maybe;
 using v8::MaybeLocal;
 using v8::Null;
 using v8::Number;