diff --git a/echo.go b/echo.go
index 5b43fff0..4d983597 100644
--- a/echo.go
+++ b/echo.go
@@ -584,8 +584,11 @@ func (e *Echo) startTLS(address string) error {
 func (e *Echo) StartServer(s *http.Server) (err error) {
 	// Setup
 	e.colorer.SetOutput(e.Logger.Output())
-	s.Handler = e
 	s.ErrorLog = e.stdLogger
+	s.Handler = e
+	if e.Debug {
+		e.Logger.SetLevel(log.DEBUG)
+	}
 
 	if s.TLSConfig == nil {
 		if e.Listener == nil {