diff --git a/pkg/mining/settings_manager.go b/pkg/mining/settings_manager.go
index 02c7b94..61ea09d 100644
--- a/pkg/mining/settings_manager.go
+++ b/pkg/mining/settings_manager.go
@@ -91,7 +91,7 @@ func DefaultSettings() *AppSettings {
 // settingsManager, err := NewSettingsManager()
 // settings := settingsManager.Get()
 type SettingsManager struct {
-	mu           sync.RWMutex
+	mutex        sync.RWMutex
 	settings     *AppSettings
 	settingsPath string
 }
@@ -125,8 +125,8 @@ func NewSettingsManager() (*SettingsManager, error) {
 
 // if err := settingsManager.Load(); err != nil && !os.IsNotExist(err) { return err }
 func (settingsManager *SettingsManager) Load() error {
-	settingsManager.mu.Lock()
-	defer settingsManager.mu.Unlock()
+	settingsManager.mutex.Lock()
+	defer settingsManager.mutex.Unlock()
 
 	data, err := os.ReadFile(settingsManager.settingsPath)
 	if err != nil {
@@ -144,8 +144,8 @@ func (settingsManager *SettingsManager) Load() error {
 
 // if err := settingsManager.Save(); err != nil { return err }
 func (settingsManager *SettingsManager) Save() error {
-	settingsManager.mu.Lock()
-	defer settingsManager.mu.Unlock()
+	settingsManager.mutex.Lock()
+	defer settingsManager.mutex.Unlock()
 
 	data, err := json.MarshalIndent(settingsManager.settings, "", "  ")
 	if err != nil {
@@ -158,8 +158,8 @@ func (settingsManager *SettingsManager) Save() error {
 // settings := settingsManager.Get()
 // if settings.Theme == "dark" { ... }
 func (settingsManager *SettingsManager) Get() *AppSettings {
-	settingsManager.mu.RLock()
-	defer settingsManager.mu.RUnlock()
+	settingsManager.mutex.RLock()
+	defer settingsManager.mutex.RUnlock()
 
 	// Return a copy to prevent concurrent modification
 	settingsCopy := *settingsManager.settings
@@ -168,8 +168,8 @@ func (settingsManager *SettingsManager) Get() *AppSettings {
 
 // settingsManager.Update(func(s *AppSettings) { s.Theme = "dark" })
 func (settingsManager *SettingsManager) Update(fn func(*AppSettings)) error {
-	settingsManager.mu.Lock()
-	defer settingsManager.mu.Unlock()
+	settingsManager.mutex.Lock()
+	defer settingsManager.mutex.Unlock()
 
 	fn(settingsManager.settings)
 
@@ -195,8 +195,8 @@ func (settingsManager *SettingsManager) UpdateWindowState(x, y, width, height in
 // state := settingsManager.GetWindowState()
 // if state.Maximized { ... }
 func (settingsManager *SettingsManager) GetWindowState() WindowState {
-	settingsManager.mu.RLock()
-	defer settingsManager.mu.RUnlock()
+	settingsManager.mutex.RLock()
+	defer settingsManager.mutex.RUnlock()
 	return settingsManager.settings.Window
 }