diff --git a/kernel/sys.c b/kernel/sys.c
index 926bf9d..8ecfe34 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -881,7 +881,7 @@
 #ifdef CONFIG_SOFTWARE_SUSPEND
 	case LINUX_REBOOT_CMD_SW_SUSPEND:
 		{
-			int ret = pm_suspend(PM_SUSPEND_DISK);
+			int ret = hibernate();
 			unlock_kernel();
 			return ret;
 		}