diff --git a/src/thread.c b/src/thread.c
index 9f1a9f3cfb..94180a712c 100644
--- a/src/thread.c
+++ b/src/thread.c
@@ -654,8 +654,8 @@ rt_err_t rt_thread_sleep(rt_tick_t tick)
         rt_timer_start(&(thread->thread_timer));
 
         /* enable interrupt */
-        rt_hw_local_irq_enable(level);
         rt_spin_unlock(&(thread->spinlock));
+        rt_hw_local_irq_enable(level);
         rt_exit_critical();
 
         thread->error = -RT_EINTR;
@@ -668,8 +668,8 @@ rt_err_t rt_thread_sleep(rt_tick_t tick)
     }
     else
     {
-        rt_hw_local_irq_enable(level);
         rt_spin_unlock(&(thread->spinlock));
+        rt_hw_local_irq_enable(level);
         rt_exit_critical();
     }
 
@@ -737,8 +737,8 @@ rt_err_t rt_thread_delay_until(rt_tick_t *tick, rt_tick_t inc_tick)
         rt_timer_control(&(thread->thread_timer), RT_TIMER_CTRL_SET_TIME, &left_tick);
         rt_timer_start(&(thread->thread_timer));
 
-        rt_hw_local_irq_enable(level);
         rt_spin_unlock(&(thread->spinlock));
+        rt_hw_local_irq_enable(level);
         rt_exit_critical();
 
         rt_schedule();