diff --git a/fake_prefs.h b/fake_prefs.h
index 30c3486..62cf738 100644
--- a/fake_prefs.h
+++ b/fake_prefs.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROMEOS_PLATFORM_UPDATE_ENGINE_FAKE_PREFS_H_
-#define CHROMEOS_PLATFORM_UPDATE_ENGINE_FAKE_PREFS_H_
+#ifndef UPDATE_ENGINE_FAKE_PREFS_H_
+#define UPDATE_ENGINE_FAKE_PREFS_H_
 
 #include <map>
 #include <string>
@@ -88,4 +88,4 @@
 
 }  // namespace chromeos_update_engine
 
-#endif  // CHROMEOS_PLATFORM_UPDATE_ENGINE_FAKE_PREFS_H_
+#endif  // UPDATE_ENGINE_FAKE_PREFS_H_