diff --git a/src/com/android/settings/security/screenlock/PinPrivacyPreferenceController.kt b/src/com/android/settings/security/screenlock/PinPrivacyPreferenceController.kt
index 176183e..78656e8 100644
--- a/src/com/android/settings/security/screenlock/PinPrivacyPreferenceController.kt
+++ b/src/com/android/settings/security/screenlock/PinPrivacyPreferenceController.kt
@@ -45,7 +45,7 @@
         return PREF_KEY
     }
 
-    override fun onPreferenceChange(preference: Preference?, value: Any?): Boolean {
+    override fun onPreferenceChange(preference: Preference, value: Any): Boolean {
         lockPatternUtils.setPinEnhancedPrivacyEnabled((value as Boolean), userId)
         return true
     }