diff --git a/logrlint_test.go b/logrlint_test.go
index 615fa8b..89111f3 100644
--- a/logrlint_test.go
+++ b/logrlint_test.go
@@ -45,8 +45,17 @@ func TestKlogOnly(t *testing.T) {
 func TestCustomOnly(t *testing.T) {
 	testdata := analysistest.TestData()
 
-	customLoggerFlag := "-logger=mylogger:a/customonly:(*a/customonly.Logger).Debugw,(*a/customonly.Logger).Infow," +
-		"(*a/customonly.Logger).Warnw,(*a/customonly.Logger).Errorw,(*a/customonly.Logger).With"
+	customLoggerFlag := "-logger=mylogger:a/customonly:" +
+		"(*a/customonly.Logger).Debugw," +
+		"(*a/customonly.Logger).Infow," +
+		"(*a/customonly.Logger).Warnw," +
+		"(*a/customonly.Logger).Errorw," +
+		"(*a/customonly.Logger).With," +
+		"a/customonly.Debugw," +
+		"a/customonly.Infow," +
+		"a/customonly.Warnw," +
+		"a/customonly.Errorw," +
+		"a/customonly.With"
 
 	testCases := []struct {
 		name  string
@@ -83,6 +92,12 @@ func TestOptions(t *testing.T) {
 			"(*a/customonly.Logger).Warnw",
 			"(*a/customonly.Logger).Errorw",
 			"(*a/customonly.Logger).With",
+
+			"a/customonly.Debugw",
+			"a/customonly.Infow",
+			"a/customonly.Warnw",
+			"a/customonly.Errorw",
+			"a/customonly.With",
 		})
 
 	testCases := []struct {
diff --git a/testdata/src/a/customonly/example.go b/testdata/src/a/customonly/example.go
index 4c4cbba..b4b497a 100644
--- a/testdata/src/a/customonly/example.go
+++ b/testdata/src/a/customonly/example.go
@@ -35,3 +35,20 @@ func ExampleCustomLogger() {
 	log.With("with_key1", "with_value1").Infow("message", "key1", "value1", "key2") // want `odd number of arguments passed as key-value pairs for logging`
 	log.With("with_key1").Infow("message", "key1", "value1")                        // want `odd number of arguments passed as key-value pairs for logging`
 }
+
+func ExampleCustomLoggerPackageLevelFunc() {
+	err := errors.New("example error")
+
+	defer Sync()
+
+	Infow("abc", "key1", "value1")
+	Infow("abc", "key1", "value1", "key2") // want `odd number of arguments passed as key-value pairs for logging`
+
+	Errorw("message", "err", err, "key1", "value1")
+	Errorw("message", err, "key1", "value1", "key2", "value2") // want `odd number of arguments passed as key-value pairs for logging`
+
+	// with test
+	With("with_key1", "with_value1").Infow("message", "key1", "value1")
+	With("with_key1", "with_value1").Infow("message", "key1", "value1", "key2") // want `odd number of arguments passed as key-value pairs for logging`
+	With("with_key1").Infow("message", "key1", "value1")                        // want `odd number of arguments passed as key-value pairs for logging`
+}
diff --git a/testdata/src/a/customonly/zap_wrapper.go b/testdata/src/a/customonly/zap_wrapper.go
index f3f674f..f1eaca6 100644
--- a/testdata/src/a/customonly/zap_wrapper.go
+++ b/testdata/src/a/customonly/zap_wrapper.go
@@ -2,6 +2,8 @@ package customonly
 
 import "go.uber.org/zap"
 
+var l = New()
+
 type Logger struct {
 	s *zap.SugaredLogger
 }
@@ -40,3 +42,35 @@ func (l *Logger) Fatalw(msg string, keysAndValues ...interface{}) {
 func (l *Logger) Sync() error {
 	return l.s.Sync()
 }
+
+// package level wrap func
+
+func With(keysAndValues ...interface{}) *Logger {
+	return &Logger{
+		s: l.s.With(keysAndValues...),
+	}
+}
+
+func Debugw(msg string, keysAndValues ...interface{}) {
+	l.s.Debugw(msg, keysAndValues...)
+}
+
+func Infow(msg string, keysAndValues ...interface{}) {
+	l.s.Infow(msg, keysAndValues...)
+}
+
+func Warnw(msg string, keysAndValues ...interface{}) {
+	l.s.Warnw(msg, keysAndValues...)
+}
+
+func Errorw(msg string, keysAndValues ...interface{}) {
+	l.s.Errorw(msg, keysAndValues...)
+}
+
+func Fatalw(msg string, keysAndValues ...interface{}) {
+	l.s.Fatalw(msg, keysAndValues...)
+}
+
+func Sync() error {
+	return l.s.Sync()
+}