diff --git a/pkg/configutil/once.go b/pkg/configutil/once.go
index 00e2a2a46..0e162146e 100644
--- a/pkg/configutil/once.go
+++ b/pkg/configutil/once.go
@@ -25,6 +25,7 @@ var (
 	// configInfo is the config.json data
 	configInfo *config.Config
 	configOnce sync.Once
+	err        error
 )
 
 // LoadConfigOnce returns the previously read config file.
@@ -32,7 +33,6 @@ var (
 // or return a default config if not found.
 // The returned config is only suitable for read only scenarios for short-lived processes.
 func LoadConfigOnce() (*config.Config, error) {
-	var err error
 	configOnce.Do(func() {
 		configInfo, err = config.LoadConfig()
 		if err != nil {