diff --git a/real_dbus_wrapper.h b/real_dbus_wrapper.h
index 22dddde..7e49f4e 100644
--- a/real_dbus_wrapper.h
+++ b/real_dbus_wrapper.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_REAL_DBUS_WRAPPER_H_
-#define CHROMEOS_PLATFORM_UPDATE_ENGINE_REAL_DBUS_WRAPPER_H_
+#ifndef UPDATE_ENGINE_REAL_DBUS_WRAPPER_H_
+#define UPDATE_ENGINE_REAL_DBUS_WRAPPER_H_
 
 // A mockable interface for DBus.
 
@@ -138,4 +138,4 @@
 
 }  // namespace chromeos_update_engine
 
-#endif  // CHROMEOS_PLATFORM_UPDATE_ENGINE_REAL_DBUS_WRAPPER_H_
+#endif  // UPDATE_ENGINE_REAL_DBUS_WRAPPER_H_