diff --git a/micropython/trezorhal/usbd_conf.c b/micropython/trezorhal/usbd_conf.c
index a820fd9047..d3770d791f 100644
--- a/micropython/trezorhal/usbd_conf.c
+++ b/micropython/trezorhal/usbd_conf.c
@@ -32,10 +32,11 @@
 /* Includes ------------------------------------------------------------------*/
 #include STM32_HAL_H
 #include "usbd_core.h"
-#include "py/obj.h"
-#include "irq.h"
 #include "usb.h"
 
+#define IRQ_PRI_OTG_FS          6
+#define IRQ_SUBPRI_OTG_FS       0
+
 /* Private typedef -----------------------------------------------------------*/
 /* Private define ------------------------------------------------------------*/
 /* Private macro -------------------------------------------------------------*/
diff --git a/micropython/trezorhal/usbd_conf.h b/micropython/trezorhal/usbd_conf.h
index 668a5558dc..6fd23bf7b1 100644
--- a/micropython/trezorhal/usbd_conf.h
+++ b/micropython/trezorhal/usbd_conf.h
@@ -39,8 +39,6 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "py/mpconfig.h"
-
 /* Exported types ------------------------------------------------------------*/
 /* Exported constants --------------------------------------------------------*/
 /* Common Config */