diff --git a/include/rtthread.h b/include/rtthread.h
index c45091151c..8d4f740e8c 100644
--- a/include/rtthread.h
+++ b/include/rtthread.h
@@ -351,7 +351,7 @@ rt_sem_t rt_sem_create(const char *name, rt_uint32_t value, rt_uint8_t flag);
 rt_err_t rt_sem_delete(rt_sem_t sem);
 #endif
 
-rt_err_t rt_sem_take(rt_sem_t sem, rt_int32_t time);
+rt_err_t rt_sem_take(rt_sem_t sem, rt_int32_t timeout);
 rt_err_t rt_sem_trytake(rt_sem_t sem);
 rt_err_t rt_sem_release(rt_sem_t sem);
 rt_err_t rt_sem_control(rt_sem_t sem, int cmd, void *arg);
@@ -368,7 +368,7 @@ rt_mutex_t rt_mutex_create(const char *name, rt_uint8_t flag);
 rt_err_t rt_mutex_delete(rt_mutex_t mutex);
 #endif
 
-rt_err_t rt_mutex_take(rt_mutex_t mutex, rt_int32_t time);
+rt_err_t rt_mutex_take(rt_mutex_t mutex, rt_int32_t timeout);
 rt_err_t rt_mutex_trytake(rt_mutex_t mutex);
 rt_err_t rt_mutex_release(rt_mutex_t mutex);
 rt_err_t rt_mutex_control(rt_mutex_t mutex, int cmd, void *arg);