diff --git a/services/http/http.go b/services/http/http.go
index 51e7771..9159c7b 100644
--- a/services/http/http.go
+++ b/services/http/http.go
@@ -523,6 +523,7 @@ func (s *HTTP) Resolve(address string) string {
 	ip, err := s.domainResolver.Resolve(address)
 	if err != nil {
 		s.log.Printf("dns error %s , ERR:%s", address, err)
+		return address
 	}
 	return ip
 }
diff --git a/services/socks/socks.go b/services/socks/socks.go
index b740966..9069447 100644
--- a/services/socks/socks.go
+++ b/services/socks/socks.go
@@ -804,6 +804,7 @@ func (s *Socks) Resolve(address string) string {
 	ip, err := s.domainResolver.Resolve(address)
 	if err != nil {
 		s.log.Printf("dns error %s , ERR:%s", address, err)
+		return address
 	}
 	return ip
 }
diff --git a/services/sps/sps.go b/services/sps/sps.go
index 60b6f29..e3a7fdf 100644
--- a/services/sps/sps.go
+++ b/services/sps/sps.go
@@ -496,6 +496,7 @@ func (s *SPS) Resolve(address string) string {
 	ip, err := s.domainResolver.Resolve(address)
 	if err != nil {
 		s.log.Printf("dns error %s , ERR:%s", address, err)
+		return address
 	}
 	return ip
 }