diff --git a/src/main/res/xml/preferences_security.xml b/src/main/res/xml/preferences_security.xml
index 0f2e39cf7..38cda08b4 100644
--- a/src/main/res/xml/preferences_security.xml
+++ b/src/main/res/xml/preferences_security.xml
@@ -54,6 +54,7 @@
         <SwitchPreferenceCompat
             android:defaultValue="@bool/app_lock_enabled"
             android:key="app_lock_enabled"
+            android:icon="@drawable/ic_lock_24dp"
             android:summary="@string/pref_app_lock_enable_summary"
             android:title="@string/pref_app_lock_enable_title" />
         <ListPreference