diff --git a/consul/discovery.go b/consul/discovery.go
index 2febcc4..b2fb551 100644
--- a/consul/discovery.go
+++ b/consul/discovery.go
@@ -112,7 +112,7 @@ func (s *Service) Connect() (*connect.Service, error) {
 	s.connect = svc
 	cnf := svc.ServerTLSConfig()
 	for k, c := range cnf.Certificates {
-		fmt.Printf("CONNECT CERT %s: %v", k, c)
+		fmt.Printf("CONNECT CERT %d: %v", k, c)
 	}
 
 	return svc, err