diff --git a/vpython b/vpython
index 674a68be8..d836ae7bb 100755
--- a/vpython
+++ b/vpython
@@ -1,4 +1,4 @@
-#/bin/bash
+#!/bin/bash
 
 # Copyright 2017 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be