diff --git a/usr.sbin/watchdogd/watchdogd.c b/usr.sbin/watchdogd/watchdogd.c
index e255e07bcc53..5416751d4cc3 100644
--- a/usr.sbin/watchdogd/watchdogd.c
+++ b/usr.sbin/watchdogd/watchdogd.c
@@ -455,7 +455,7 @@ struct act_tbl {
 	int at_value;
 };
 
-struct act_tbl act_tbl[] = {
+static const struct act_tbl act_tbl[] = {
 	{ "panic", WD_SOFT_PANIC },
 	{ "ddb", WD_SOFT_DDB },
 	{ "log", WD_SOFT_LOG },