diff --git a/src/idle.c b/src/idle.c
index b847ff1f603973d0848abf790fe0703353d1f345..b0355f9b8bdd2aa8d4e384643a0788af7c3416e4 100644
--- a/src/idle.c
+++ b/src/idle.c
@@ -60,8 +60,6 @@ void rt_thread_idle_sethook(void (*hook)())
  */
 void rt_thread_idle_excute(void)
 {
-	RT_DEBUG_NOT_IN_INTERRUPT;
-
 	/* check the defunct thread list */
 	if (!rt_list_isempty(&rt_thread_defunct))
 	{
@@ -70,6 +68,8 @@ void rt_thread_idle_excute(void)
 #ifdef RT_USING_MODULE
 		rt_module_t module = RT_NULL;
 #endif
+		RT_DEBUG_NOT_IN_INTERRUPT;
+
 		/* disable interrupt */
 		lock = rt_hw_interrupt_disable();