diff --git a/port/ch32/usb_dc_usbfs.c b/port/ch32/usb_dc_usbfs.c
index f404c41b..b2241b02 100644
--- a/port/ch32/usb_dc_usbfs.c
+++ b/port/ch32/usb_dc_usbfs.c
@@ -4,9 +4,6 @@
 #ifdef CONFIG_USB_HS
 #error "usb fs do not support hs"
 #endif
-#ifndef CONFIG_USBDEV_ALIGN_CHECK_DISABLE
-#error "ch32 ip must disable align check"
-#endif
 
 #ifndef USBD_IRQHandler
 #define USBD_IRQHandler OTG_FS_IRQHandler //use actual usb irq name instead