diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index b13e9d2..812fcc3 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -872,6 +872,13 @@
 		.extra2		= &one,
 	},
 	{
+		.procname	= "watchdog_cpumask",
+		.data		= &watchdog_cpumask_bits,
+		.maxlen		= NR_CPUS,
+		.mode		= 0644,
+		.proc_handler	= proc_watchdog_cpumask,
+	},
+	{
 		.procname	= "softlockup_panic",
 		.data		= &softlockup_panic,
 		.maxlen		= sizeof(int),