diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index cff5a6a..9102e37 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -20,6 +20,7 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/string.h>
+#include <linux/pm.h>
 
 
 extern struct subsystem devices_subsys;
@@ -302,7 +303,7 @@
  *	all synchronization.
  */
 
-int sysdev_suspend(u32 state)
+int sysdev_suspend(pm_message_t state)
 {
 	struct sysdev_class * cls;