diff --git a/cmd/hubserver/handler.go b/cmd/hubserver/handler.go
index 4090540..3c3e8d9 100644
--- a/cmd/hubserver/handler.go
+++ b/cmd/hubserver/handler.go
@@ -176,7 +176,7 @@ func (handler *subscriptionHandler) handleSubscription(w http.ResponseWriter, r
 		if validateURL(validationURL.String(), ourChallenge) {
 			log.Printf("subscribe: validation valid\n")
 			err = handler.store.Subscribe(topicURL.String(), storage.Subscriber{callbackURL.String(), leaseSeconds, secret, time.Now()})
-			log.Println("saving suscriber failed: %v", err)
+			log.Printf("saving suscriber failed: %v", err)
 		} else {
 			log.Printf("subscribe: validation failed\n")
 		}