diff --git a/client.go b/client.go
index cc602e5..43ad8f3 100644
--- a/client.go
+++ b/client.go
@@ -97,6 +97,9 @@ func getLogInstance(logConf *LogConfig, loggerInstance *zap.Logger) (*zap.Logger
 	if nil != loggerInstance {
 		return loggerInstance, nil
 	}
+	if nil == logConf {
+		return nil, nil
+	}
 	logConfList := []logger.SetLoggerOptionFunc{logger.WithEncoder(logConf.Encoder), logger.WithCallerSkip(logConf.Skip), logger.WithCaller()}
 	if logConf.ConsoleOutput {
 		logConfList = append(logConfList, logger.WithConsoleOutput())