diff --git a/engine/src/flutter/tools/gn b/engine/src/flutter/tools/gn
index 2028fe26bf3..2cfc42920b0 100755
--- a/engine/src/flutter/tools/gn
+++ b/engine/src/flutter/tools/gn
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/env vpython3
 # Copyright 2013 The Flutter Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.