| Index: runtime/vm/ring_buffer.h | 
| diff --git a/runtime/vm/ring_buffer.h b/runtime/vm/ring_buffer.h | 
| index e015930bc6198877849243bd35cdf903269530e0..77f6314c8916815de4617868e5025e288d1d0f43 100644 | 
| --- a/runtime/vm/ring_buffer.h | 
| +++ b/runtime/vm/ring_buffer.h | 
| @@ -2,8 +2,8 @@ | 
| // for details. All rights reserved. Use of this source code is governed by a | 
| // BSD-style license that can be found in the LICENSE file. | 
|  | 
| -#ifndef VM_RING_BUFFER_H_ | 
| -#define VM_RING_BUFFER_H_ | 
| +#ifndef RUNTIME_VM_RING_BUFFER_H_ | 
| +#define RUNTIME_VM_RING_BUFFER_H_ | 
|  | 
| #include "platform/assert.h" | 
| #include "platform/utils.h" | 
| @@ -40,4 +40,4 @@ class RingBuffer { | 
|  | 
| }  // namespace dart | 
|  | 
| -#endif  // VM_RING_BUFFER_H_ | 
| +#endif  // RUNTIME_VM_RING_BUFFER_H_ | 
|  |