diff --git a/osal/usb_osal_rtthread.c b/osal/usb_osal_rtthread.c
index d355699c..dd1075a5 100644
--- a/osal/usb_osal_rtthread.c
+++ b/osal/usb_osal_rtthread.c
@@ -26,6 +26,8 @@ usb_osal_thread_t usb_osal_thread_create(const char *name, uint32_t stack_size,
 void usb_osal_thread_delete(usb_osal_thread_t thread)
 {
     if (thread == NULL) {
+        rt_thread_t self = rt_thread_self();
+        rt_thread_control(self, RT_THREAD_CTRL_CLOSE, RT_NULL);
         return;
     }