diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 29984d8c41f01a9a35af54038d4c9809e09cca37..cd047927f7073da4f6c2d2e2297d26c4050ce99c 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5122,7 +5122,7 @@ long __sched io_schedule_timeout(long timeout)
 }
 EXPORT_SYMBOL(io_schedule_timeout);
 
-void io_schedule(void)
+void __sched io_schedule(void)
 {
 	int token;