diff --git a/src/scheduler_up.c b/src/scheduler_up.c
index 44da38d8ff..289a30a58f 100644
--- a/src/scheduler_up.c
+++ b/src/scheduler_up.c
@@ -486,7 +486,7 @@ void rt_exit_critical_safe(rt_base_t critical_level)
 
 void rt_exit_critical_safe(rt_base_t critical_level)
 {
-    return rt_exit_critical();
+    rt_exit_critical();
 }
 
 #endif