diff --git a/internal/utils/utils.go b/internal/utils/utils.go
index 4240c3d..1f45566 100644
--- a/internal/utils/utils.go
+++ b/internal/utils/utils.go
@@ -80,9 +80,9 @@ func Keys[M ~map[K]V, K comparable, V any](m M) []K {
 	return r
 }
 
-func DedupStringSlice[T string](strings []T) []T {
-	keys := make(map[T]bool)
-	var list []T
+func DedupStringSlice(strings []string) []string {
+	keys := make(map[string]bool)
+	var list []string
 	for _, item := range strings {
 		if _, value := keys[item]; !value {
 			keys[item] = true
diff --git a/internal/utils/utils_test.go b/internal/utils/utils_test.go
index 768d954..b6491c3 100644
--- a/internal/utils/utils_test.go
+++ b/internal/utils/utils_test.go
@@ -15,3 +15,13 @@ func TestObfuscate(t *testing.T) {
 	assert.Equal(t, "****-text", Obfuscate("test-text", 5))
 	assert.Equal(t, "****", Obfuscate("test", 6))
 }
+
+func TestDedupStringSlice(t *testing.T) {
+	assert.Equal(t, []string{"a", "b"}, DedupStringSlice([]string{"a", "b", "b", "a"}))
+	assert.Equal(t, []string{"a", "b"}, DedupStringSlice([]string{"a", "b"}))
+}
+
+func TestKeys(t *testing.T) {
+	assert.Contains(t, Keys(map[string]int{"a": 1, "b": 2}), "a")
+	assert.Contains(t, Keys(map[string]int{"a": 1, "b": 2}), "b")
+}
diff --git a/log/logger.go b/log/logger.go
index e5361ed..5cb6b18 100644
--- a/log/logger.go
+++ b/log/logger.go
@@ -10,7 +10,7 @@ import (
 type Level int
 
 type Logger interface {
-	GetLevel() configcat.LogLevel // for the SDK
+	GetConfigCatLevel() configcat.LogLevel // for the SDK
 
 	Level() Level
 
@@ -82,7 +82,7 @@ func (l *logger) WithPrefix(prefix string) Logger {
 	}
 }
 
-func (l *logger) GetLevel() configcat.LogLevel {
+func (l *logger) GetConfigCatLevel() configcat.LogLevel {
 	switch l.level {
 	case Debug:
 		return configcat.LogLevelDebug
@@ -92,6 +92,8 @@ func (l *logger) GetLevel() configcat.LogLevel {
 		return configcat.LogLevelWarn
 	case Error:
 		return configcat.LogLevelError
+	case None:
+		return configcat.LogLevelNone
 	default:
 		return configcat.LogLevelWarn
 	}
diff --git a/log/logger_test.go b/log/logger_test.go
index 75d8540..e5a1389 100644
--- a/log/logger_test.go
+++ b/log/logger_test.go
@@ -2,6 +2,8 @@ package log
 
 import (
 	"bytes"
+	"fmt"
+	configcat "github.com/configcat/go-sdk/v9"
 	"github.com/stretchr/testify/assert"
 	"testing"
 )
@@ -98,4 +100,29 @@ func TestLogger(t *testing.T) {
 		l.Errorf("error")
 		l.Reportf("rep")
 	})
+	t.Run("debug logger", func(t *testing.T) {
+		l := NewDebugLogger()
+		assert.Equal(t, Debug, l.Level())
+	})
+	t.Run("sdk loglevel", func(t *testing.T) {
+		tests := []struct {
+			level          Level
+			configCatLevel configcat.LogLevel
+		}{
+			{Error, configcat.LogLevelError},
+			{Warn, configcat.LogLevelWarn},
+			{Info, configcat.LogLevelInfo},
+			{Debug, configcat.LogLevelDebug},
+			{None, configcat.LogLevelNone},
+			{500, configcat.LogLevelWarn},
+		}
+
+		for _, test := range tests {
+			t.Run(fmt.Sprintf("%v == %v", test.level, test.configCatLevel), func(t *testing.T) {
+				var out, err bytes.Buffer
+				l := NewLogger(&err, &out, test.level)
+				assert.Equal(t, test.configCatLevel, l.GetConfigCatLevel())
+			})
+		}
+	})
 }
diff --git a/sdk/sdk.go b/sdk/sdk.go
index 61665dc..6b579d6 100644
--- a/sdk/sdk.go
+++ b/sdk/sdk.go
@@ -108,7 +108,7 @@ func NewClient(sdkCtx *Context, log log.Logger) Client {
 		SDKKey:         key,
 		DataGovernance: configcat.Global,
 		Logger:         sdkLog,
-		LogLevel:       sdkLog.GetLevel(),
+		LogLevel:       sdkLog.GetConfigCatLevel(),
 		Transport:      OverrideUserAgent(transport),
 		Hooks:          &configcat.Hooks{},
 	}