diff --git a/reactos/drivers/usb/usbstor/usbstor.c b/reactos/drivers/usb/usbstor/usbstor.c
index 53c5481694d..41a527fd971 100644
--- a/reactos/drivers/usb/usbstor/usbstor.c
+++ b/reactos/drivers/usb/usbstor/usbstor.c
@@ -10,7 +10,6 @@
 
 /* INCLUDES ******************************************************************/
 
-#define INITGUID
 #include "usbstor.h"
 
 #define NDEBUG
diff --git a/reactos/drivers/usb/usbstor/usbstor.h b/reactos/drivers/usb/usbstor/usbstor.h
index 2da1b1a8486..fa2dbc2a8bb 100644
--- a/reactos/drivers/usb/usbstor/usbstor.h
+++ b/reactos/drivers/usb/usbstor/usbstor.h
@@ -1,6 +1,8 @@
 
 #pragma once
 
+#define INITGUID
+
 #include <ntddk.h>
 #include <usbdi.h>
 #include <hubbusif.h>