diff --git a/components/drivers/sdio/mmcsd_core.c b/components/drivers/sdio/mmcsd_core.c
index fb742278b75e9c41ac95b5cb7b22072ac239cd53..e9a2e49115aab13761fe7d1c31cf53f986c2eaac 100644
--- a/components/drivers/sdio/mmcsd_core.c
+++ b/components/drivers/sdio/mmcsd_core.c
@@ -20,8 +20,12 @@
 #define RT_MMCSD_STACK_SIZE 1024
 #endif
 #ifndef RT_MMCSD_THREAD_PREORITY
+#if (RT_THREAD_PRIORITY_MAX == 32)
+#define RT_MMCSD_THREAD_PREORITY  0x16
+#else
 #define RT_MMCSD_THREAD_PREORITY  0x40
 #endif
+#endif
 
 //static struct rt_semaphore mmcsd_sem;
 static struct rt_thread mmcsd_detect_thread;