diff --git a/kernel/sys.c b/kernel/sys.c
index 98489d8..c87b461 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -880,7 +880,7 @@
 	return 0;
 }
 
-static void deferred_cad(void *dummy)
+static void deferred_cad(struct work_struct *dummy)
 {
 	kernel_restart(NULL);
 }
@@ -892,7 +892,7 @@
  */
 void ctrl_alt_del(void)
 {
-	static DECLARE_WORK(cad_work, deferred_cad, NULL);
+	static DECLARE_WORK(cad_work, deferred_cad);
 
 	if (C_A_D)
 		schedule_work(&cad_work);