diff --git a/app/routing/router.go b/app/routing/router.go
index f69189c..325b5a7 100644
--- a/app/routing/router.go
+++ b/app/routing/router.go
@@ -112,6 +112,7 @@ func init() {
 	var err error
 
 	sess, err = session.NewManager("memory", "ptpp", 3600)
+	go sess.GC()
 	if err != nil {
 		panic(werror.Wrap(err, "Error creating session manager"))
 	}