diff --git a/app/discovery/discovery.go b/app/discovery/discovery.go
index 9b27578..805ce3f 100644
--- a/app/discovery/discovery.go
+++ b/app/discovery/discovery.go
@@ -137,6 +137,7 @@ func (s *Service) mergeLists() (res []URLMapper) {
 	for _, p := range s.providers {
 		lst, err := p.List()
 		if err != nil {
+			log.Printf("[DEBUG] can't get list for %s, %v", p, err)
 			continue
 		}
 		for i := range lst {
diff --git a/app/discovery/provider/static.go b/app/discovery/provider/static.go
index ba8a90e..01bbaec 100644
--- a/app/discovery/provider/static.go
+++ b/app/discovery/provider/static.go
@@ -2,7 +2,6 @@ package provider
 
 import (
 	"context"
-	"log"
 	"regexp"
 	"strings"
 
@@ -51,7 +50,6 @@ func (s *Static) List() (res []discovery.URLMapper, err error) {
 		}
 		um, err := parse(r)
 		if err != nil {
-			log.Printf("[DEBUG] invalid rule %s, %v", r, err)
 			return nil, err
 		}
 		res = append(res, um)