diff --git a/log.go b/log.go
index 7fd2e24..c668975 100644
--- a/log.go
+++ b/log.go
@@ -35,6 +35,7 @@ type logConfig struct {
 	CrashLogFilename string
 	ErrorLogFilename string
 	EnableLineNumber bool
+	AddCallerSkip    int
 
 	// enable the truncation of the level text to 4 characters.
 	EnableLevelTruncation bool
@@ -62,6 +63,10 @@ func (config *logConfig) Init() {
 	logger = config.newLogger().Sugar()
 }
 
+func (config *logConfig) New() *zap.SugaredLogger {
+	return config.newLogger().Sugar()
+}
+
 func NewLogConfig() *logConfig {
 	return &logConfig{
 		Level:                 DebugLevel,
@@ -113,7 +118,7 @@ func (config *logConfig) newLogger() *zap.Logger {
 	var options []zap.Option
 
 	if config.EnableLineNumber {
-		options = append(options, zap.AddCaller(), zap.AddCallerSkip(1))
+		options = append(options, zap.AddCaller(), zap.AddCallerSkip(config.AddCallerSkip))
 	}
 
 	if config.EnableErrorStacktrace {
@@ -265,3 +270,7 @@ func writeCrashLog(file string) {
 func Fields(args ...interface{}) {
 	logger = logger.With(args...)
 }
+
+func With(l *zap.SugaredLogger, args ...interface{}) *zap.SugaredLogger {
+	return l.With(args...)
+}
diff --git a/log_test.go b/log_test.go
index 648a62e..4b7354e 100644
--- a/log_test.go
+++ b/log_test.go
@@ -21,10 +21,10 @@ func TestLogWithConfig(t *testing.T) {
 
 	config.Init()
 
-	With("traceid", float64(21221212122))
+	Fields("traceid", float64(21221212122))
 	Debugf("this is %s message", "debug")
 	config.Init()
-	With(zap.String("traceid", "12123123123"))
+	Fields(zap.String("traceid", "12123123123"))
 	Infof("this is %s message", "info")
 	// Errorf("this is %s message", "error")
 	// Panicf("this is %s message", "panic")
diff --git a/logger.go b/logger.go
index fdced5d..c49c80c 100644
--- a/logger.go
+++ b/logger.go
@@ -1,9 +1,5 @@
 package log
 
-func With(args ...interface{}) {
-	logger = logger.With(args...)
-}
-
 func Debug(args ...interface{}) {
 	logger.Debug(args...)
 }
diff --git a/version b/version
index e1d848b..6183501 100644
--- a/version
+++ b/version
@@ -1 +1 @@
-v0.0.8
\ No newline at end of file
+v0.0.9
\ No newline at end of file