1 files changed, 11 insertions, 0 deletions
diff --git a/plugin/dnssec/setup.go b/plugin/dnssec/setup.go
index d3056dc19..2bf321857 100644
--- a/plugin/dnssec/setup.go
+++ b/plugin/dnssec/setup.go
@@ -24,6 +24,17 @@ func setup(c *caddy.Controller) error {
 	}
 
 	ca := cache.New(capacity)
+	stop := make(chan struct{})
+
+	c.OnShutdown(func() error {
+		close(stop)
+		return nil
+	})
+	c.OnStartup(func() error {
+		go periodicClean(ca, stop)
+		return nil
+	})
+
 	dnsserver.GetConfig(c).AddPlugin(func(next plugin.Handler) plugin.Handler {
 		return New(zones, keys, splitkeys, next, ca)
 	})