diff --git a/src/com/android/settings/security/CredentialStorage.java b/src/com/android/settings/security/CredentialStorage.java
index 5e64723..e0daaaa 100644
--- a/src/com/android/settings/security/CredentialStorage.java
+++ b/src/com/android/settings/security/CredentialStorage.java
@@ -44,6 +44,7 @@
 
 import com.android.internal.widget.LockPatternUtils;
 import com.android.settings.R;
+import com.android.settings.core.HideNonSystemOverlayMixin;
 import com.android.settings.password.ChooseLockSettingsHelper;
 import com.android.settings.vpn2.VpnUtils;
 
@@ -75,6 +76,7 @@
     protected void onCreate(Bundle savedState) {
         super.onCreate(savedState);
         mUtils = new LockPatternUtils(this);
+        getLifecycle().addObserver(new HideNonSystemOverlayMixin(this));
     }
 
     @Override