diff --git a/src/scheduler.c b/src/scheduler.c
index 697df63ee1eac23952b50df2768246d49be48c60..503639fa812d6991419a04e44181b21789f1335d 100644
--- a/src/scheduler.c
+++ b/src/scheduler.c
@@ -84,15 +84,12 @@ static void _rt_scheduler_stack_check(struct rt_thread *thread)
 
 #if defined(ARCH_CPU_STACK_GROWS_UPWARD)
 	if (*((rt_uint8_t *)((rt_ubase_t)thread->stack_addr + thread->stack_size - 1)) != '#' ||
-        (rt_ubase_t)thread->sp <= (rt_ubase_t)thread->stack_addr ||
-        (rt_ubase_t)thread->sp >
-        (rt_ubase_t)thread->stack_addr + (rt_ubase_t)thread->stack_size)
 #else
     if (*((rt_uint8_t *)thread->stack_addr) != '#' ||
+#endif
         (rt_ubase_t)thread->sp <= (rt_ubase_t)thread->stack_addr ||
         (rt_ubase_t)thread->sp >
         (rt_ubase_t)thread->stack_addr + (rt_ubase_t)thread->stack_size)
-#endif
     {
         rt_ubase_t level;