@@ -86,8 +86,11 @@ func (cfg *Config) bindEnv() error {

 		cfg.CommonConfig.BearerToken = value

 	}

 	if value, ok := util.GetEnv("BEARER_TOKEN_FILE"); ok && len(cfg.CommonConfig.BearerToken) == 0 {

-		if tokenData, tokenErr := ioutil.ReadFile(value); err == nil {

+		if tokenData, tokenErr := ioutil.ReadFile(value); tokenErr == nil {

 			cfg.CommonConfig.BearerToken = strings.TrimSpace(string(tokenData))

+			if len(cfg.CommonConfig.BearerToken) == 0 {

+				err = fmt.Errorf("BEARER_TOKEN_FILE %q was empty", value)

+			}

 		} else {

 			err = fmt.Errorf("Error reading BEARER_TOKEN_FILE %q: %v", value, tokenErr)

 		}