diff --git a/core/usbd_core.h b/core/usbd_core.h
index 0389d0bd..58566826 100644
--- a/core/usbd_core.h
+++ b/core/usbd_core.h
@@ -22,7 +22,9 @@ extern "C" {
 #include "usb_list.h"
 #include "usb_log.h"
 #include "usb_dc.h"
+#include "usb_osal.h"
 #include "usb_memcpy.h"
+#include "usb_dcache.h"
 #include "usb_version.h"
 
 enum usbd_event_type {