diff --git a/src/quicksy/java/eu/siacs/conversations/ui/EnterPhoneNumberActivity.java b/src/quicksy/java/eu/siacs/conversations/ui/EnterPhoneNumberActivity.java
index 48b62334a..a1f55e2b4 100644
--- a/src/quicksy/java/eu/siacs/conversations/ui/EnterPhoneNumberActivity.java
+++ b/src/quicksy/java/eu/siacs/conversations/ui/EnterPhoneNumberActivity.java
@@ -2,9 +2,10 @@ package eu.siacs.conversations.ui;
 
 import android.app.AlertDialog;
 import android.content.Intent;
+
+import androidx.annotation.NonNull;
 import androidx.databinding.DataBindingUtil;
 import android.os.Bundle;
-import androidx.appcompat.widget.Toolbar;
 import android.text.Editable;
 import android.text.Html;
 import android.text.TextUtils;
@@ -14,8 +15,6 @@ import android.view.KeyEvent;
 import android.view.View;
 import android.widget.EditText;
 
-import org.jetbrains.annotations.NotNull;
-
 import java.util.concurrent.atomic.AtomicBoolean;
 
 import eu.siacs.conversations.Config;
@@ -129,7 +128,7 @@ public class EnterPhoneNumberActivity extends XmppActivity implements QuickConve
     }
 
     @Override
-    public void onSaveInstanceState(@NotNull Bundle savedInstanceState) {
+    public void onSaveInstanceState(@NonNull Bundle savedInstanceState) {
         if (this.region != null) {
             savedInstanceState.putString("region", this.region);
         }