diff --git a/src/com/android/settings/applications/specialaccess/notificationaccess/TypeFilterPreferenceController.java b/src/com/android/settings/applications/specialaccess/notificationaccess/TypeFilterPreferenceController.java
index 635d2ddaaff..973fba7740e 100644
--- a/src/com/android/settings/applications/specialaccess/notificationaccess/TypeFilterPreferenceController.java
+++ b/src/com/android/settings/applications/specialaccess/notificationaccess/TypeFilterPreferenceController.java
@@ -40,7 +40,7 @@ public abstract class TypeFilterPreferenceController extends BasePreferenceContr
         PreferenceControllerMixin, Preference.OnPreferenceChangeListener {
 
     private static final String TAG = "TypeFilterPrefCntlr";
-    private static final String XML_SEPARATOR = ",";
+    private static final String FLAG_SEPARATOR = "\\|";
 
     private ComponentName mCn;
     private int mUserId;
@@ -132,7 +132,7 @@ public abstract class TypeFilterPreferenceController extends BasePreferenceContr
                         NotificationListenerService.META_DATA_DISABLED_FILTER_TYPES).toString();
                 if (typeList != null) {
                     int types = 0;
-                    String[] typeStrings = typeList.split(XML_SEPARATOR);
+                    String[] typeStrings = typeList.split(FLAG_SEPARATOR);
                     for (int i = 0; i < typeStrings.length; i++) {
                         final String typeString = typeStrings[i];
                         if (TextUtils.isEmpty(typeString)) {
diff --git a/tests/unit/src/com/android/settings/applications/specialaccess/notificationaccess/TypeFilterPreferenceControllerTest.java b/tests/unit/src/com/android/settings/applications/specialaccess/notificationaccess/TypeFilterPreferenceControllerTest.java
index 3f6103a81a9..0e73cc3d548 100644
--- a/tests/unit/src/com/android/settings/applications/specialaccess/notificationaccess/TypeFilterPreferenceControllerTest.java
+++ b/tests/unit/src/com/android/settings/applications/specialaccess/notificationaccess/TypeFilterPreferenceControllerTest.java
@@ -152,7 +152,7 @@ public class TypeFilterPreferenceControllerTest {
     public void updateState_enabled_metaData_disableFilter_notThisField() {
         mSi.metaData = new Bundle();
         mSi.metaData.putCharSequence(NotificationListenerService.META_DATA_DISABLED_FILTER_TYPES, 
-                "1,alerting");
+                "1|alerting");
         when(mNm.isNotificationListenerAccessGranted(mCn)).thenReturn(true);
         when(mNm.getListenerFilter(mCn, 0)).thenReturn(new NotificationListenerFilter());
         CheckBoxPreference pref = new CheckBoxPreference(mContext);
@@ -165,7 +165,7 @@ public class TypeFilterPreferenceControllerTest {
     public void updateState_enabled_metaData_disableFilter_thisField_stateIsChecked() {
         mSi.metaData = new Bundle();
         mSi.metaData.putCharSequence(NotificationListenerService.META_DATA_DISABLED_FILTER_TYPES,
-                "conversations,2,32");
+                "conversations|2|32");
         when(mNm.isNotificationListenerAccessGranted(mCn)).thenReturn(true);
         when(mNm.getListenerFilter(mCn, 0)).thenReturn(
                 new NotificationListenerFilter(32, new ArraySet<>()));
@@ -189,7 +189,7 @@ public class TypeFilterPreferenceControllerTest {
     public void updateState_disabled_metaData_disableFilter_thisField_stateIsNotChecked() {
         mSi.metaData = new Bundle();
         mSi.metaData.putCharSequence(NotificationListenerService.META_DATA_DISABLED_FILTER_TYPES,
-                "1,2,32");
+                "1|2|32");
         when(mNm.isNotificationListenerAccessGranted(mCn)).thenReturn(true);
         NotificationListenerFilter before = new NotificationListenerFilter(4, new ArraySet<>());
         when(mNm.getListenerFilter(mCn, 0)).thenReturn(before);