diff --git a/native_mate/scoped_persistent.h b/native_mate/scoped_persistent.h
index bedf26b525..c1705676c2 100644
--- a/native_mate/scoped_persistent.h
+++ b/native_mate/scoped_persistent.h
@@ -106,8 +106,6 @@ class RefCountedPersistent : public ScopedPersistent<T>,
   DISALLOW_COPY_AND_ASSIGN(RefCountedPersistent);
 };
 
-typedef scoped_refptr<RefCountedPersistent<v8::Object>> RefCountedV8Object;
-
 }  // namespace mate
 
 #endif  // NATIVE_MATE_SCOPED_PERSISTENT_H_