diff --git a/src/thread.c b/src/thread.c
index 3a3c97d0b67d8aaecd5473ab1825dcd2461f2845..17cbe384ce67781708ae6d2d522ebd45ad4032f7 100644
--- a/src/thread.c
+++ b/src/thread.c
@@ -590,7 +590,7 @@ RTM_EXPORT(rt_thread_delay_util);
 /**
  * This function will let current thread delay for some milliseconds.
  *
- * @param tick the delay time
+ * @param ms the delay ms time
  *
  * @return RT_EOK
  */