diff --git a/drivers/acpi/sleep/proc.c b/drivers/acpi/sleep/proc.c
index 5a76e5b..76b45f0 100644
--- a/drivers/acpi/sleep/proc.c
+++ b/drivers/acpi/sleep/proc.c
@@ -60,7 +60,7 @@
 	state = simple_strtoul(str, NULL, 0);
 #ifdef CONFIG_SOFTWARE_SUSPEND
 	if (state == 4) {
-		error = pm_suspend(PM_SUSPEND_DISK);
+		error = hibernate();
 		goto Done;
 	}
 #endif