diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/NotificationListener.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/NotificationListener.java
index 5c4f5b51..2cefeff1 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/NotificationListener.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/NotificationListener.java
@@ -279,7 +279,7 @@ public class NotificationListener extends NotificationListenerService {
                 notificationSpec.type = NotificationType.FACEBOOK;
                 break;
             default:
-                notificationSpec.type = NotificationType.UNDEFINED;
+                notificationSpec.type = NotificationType.UNKNOWN;
                 break;
         }
 
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/PebbleReceiver.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/PebbleReceiver.java
index 801c151b..06790cfd 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/PebbleReceiver.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/PebbleReceiver.java
@@ -58,7 +58,7 @@ public class PebbleReceiver extends BroadcastReceiver {
         }
 
         if (notificationSpec.title != null) {
-            notificationSpec.type = NotificationType.UNDEFINED;
+            notificationSpec.type = NotificationType.UNKNOWN;
             String sender = intent.getStringExtra("sender");
             if ("Conversations".equals(sender)) {
                 notificationSpec.type = NotificationType.CHAT;
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/model/NotificationType.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/model/NotificationType.java
index a63b3d8c..b17f0dc0 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/model/NotificationType.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/model/NotificationType.java
@@ -2,7 +2,7 @@ package nodomain.freeyourgadget.gadgetbridge.model;
 
 public enum NotificationType {
 
-    UNDEFINED,
+    UNKNOWN,
 
     CHAT,
     EMAIL,
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/MiBand2Support.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/MiBand2Support.java
index 0a6ddb91..5e81c090 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/MiBand2Support.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/MiBand2Support.java
@@ -578,7 +578,7 @@ public class MiBand2Support extends AbstractBTLEDeviceSupport {
                 task = "chat message received";
                 alertLevel = MiBand2Service.ALERT_LEVEL_MESSAGE;
                 break;
-            case UNDEFINED:
+            case UNKNOWN:
             default:
                 task = "generic notification received";
                 alertLevel = MiBand2Service.ALERT_LEVEL_VIBRATE_ONLY;
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/MiBandSupport.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/MiBandSupport.java
index cc4429ad..5e2bdc62 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/MiBandSupport.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/MiBandSupport.java
@@ -554,7 +554,7 @@ public class MiBandSupport extends AbstractBTLEDeviceSupport {
             case FACEBOOK:
                 performPreferredNotification("chat message received", origin, null);
                 break;
-            case UNDEFINED:
+            case UNKNOWN:
             default:
                 performPreferredNotification("generic notification received", origin, null);
         }
diff --git a/app/src/main/res/xml/miband_preferences.xml b/app/src/main/res/xml/miband_preferences.xml
index 581e6e40..74f57c53 100644
--- a/app/src/main/res/xml/miband_preferences.xml
+++ b/app/src/main/res/xml/miband_preferences.xml
@@ -230,18 +230,18 @@
                 android:defaultValue="@string/p_waterdrop"
                 android:entries="@array/vibration_profile"
                 android:entryValues="@array/vibration_profile_values"
-                android:key="mi_vibration_profile_undefined"
+                android:key="mi_vibration_profile_unknown"
                 android:title="@string/miband_prefs_vibration"
                 android:summary="%s" />
 
             <EditTextPreference
                 android:defaultValue="3"
                 android:inputType="number"
-                android:key="mi_vibration_count_undefined"
+                android:key="mi_vibration_count_unknown"
                 android:maxLength="1"
                 android:title="@string/pref_title_notifications_repetitions" />
             <Preference
-                android:key="mi_try_undefined"
+                android:key="mi_try_unknown"
                 android:persistent="false"
                 android:title="@string/vibration_try"/>
         </PreferenceScreen>