diff --git a/components/drivers/sdio/mmcsd_core.c b/components/drivers/sdio/mmcsd_core.c
index a93d9329fb26672366a8286dfecc096a74125e94..d240dca4009cc46fda23ae68858edf78c1ca155c 100644
--- a/components/drivers/sdio/mmcsd_core.c
+++ b/components/drivers/sdio/mmcsd_core.c
@@ -655,6 +655,7 @@ void mmcsd_detect(void *param)
                     if (init_sd(host, ocr))
                         mmcsd_power_off(host);
                     mmcsd_host_unlock(host);
+                    rt_mb_send(&mmcsd_hotpluge_mb, (rt_uint32_t)host);
                     continue;
                 }