1 files changed, 1 insertions, 1 deletions
diff --git a/src/cpu.c b/src/cpu.c
index 686b67a4ea..bb058d6d67 100644
--- a/src/cpu.c
+++ b/src/cpu.c
@@ -94,7 +94,7 @@ RTM_EXPORT(rt_spin_unlock)
  */
 rt_base_t rt_spin_lock_irqsave(struct rt_spinlock *lock)
 {
-    unsigned long level;
+    rt_base_t level;
 
     level = rt_hw_local_irq_disable();
     rt_enter_critical();