diff --git a/pkg/koanf/service.go b/pkg/koanf/service.go
index 4916123..0fc9ab8 100644
--- a/pkg/koanf/service.go
+++ b/pkg/koanf/service.go
@@ -50,5 +50,6 @@ type Vault struct {
 }
 
 type NATS struct {
-	URL string `koanf:"url"`
+	URL          string        `koanf:"url"`
+	PingInterval time.Duration `koanf:"ping_interval"`
 }