diff --git a/proxy/pkg/server/api.go b/proxy/pkg/server/api.go
index 4e26e561d..d8ebe6924 100644
--- a/proxy/pkg/server/api.go
+++ b/proxy/pkg/server/api.go
@@ -59,6 +59,7 @@ func getCommonOptions() *options.Options {
 }
 
 func doGlobalSetup(config map[string]interface{}) {
+	log.SetFormatter(&log.JSONFormatter{})
 	switch config[ConfigLogLevel].(string) {
 	case "debug":
 		log.SetLevel(log.DebugLevel)