diff --git a/real_system_state.h b/real_system_state.h
index 13fbfad..480b4b7 100644
--- a/real_system_state.h
+++ b/real_system_state.h
@@ -28,8 +28,8 @@
 #include <power_manager/dbus-proxies.h>
 #include <session_manager/dbus-proxies.h>
 
+#include "update_engine/certificate_checker.h"
 #include "update_engine/common/boot_control_interface.h"
-#include "update_engine/common/certificate_checker.h"
 #include "update_engine/common/clock.h"
 #include "update_engine/common/hardware_interface.h"
 #include "update_engine/common/prefs.h"