diff --git a/app/src/main/java/com/wireguard/android/BootShutdownReceiver.java b/app/src/main/java/com/wireguard/android/BootShutdownReceiver.java
index 1a8c96a0..3b9f852d 100644
--- a/app/src/main/java/com/wireguard/android/BootShutdownReceiver.java
+++ b/app/src/main/java/com/wireguard/android/BootShutdownReceiver.java
@@ -21,7 +21,7 @@ public class BootShutdownReceiver extends BroadcastReceiver {
     @Override
     public void onReceive(final Context context, final Intent intent) {
         Application.onHaveBackend(backend -> {
-            if (backend.getClass() != WgQuickBackend.class)
+            if (!(backend instanceof WgQuickBackend))
                 return;
             final String action = intent.getAction();
             if (action == null)
diff --git a/app/src/main/java/com/wireguard/android/activity/BaseActivity.java b/app/src/main/java/com/wireguard/android/activity/BaseActivity.java
index b7aee1e3..e5aaadf2 100644
--- a/app/src/main/java/com/wireguard/android/activity/BaseActivity.java
+++ b/app/src/main/java/com/wireguard/android/activity/BaseActivity.java
@@ -54,7 +54,7 @@ public abstract class BaseActivity extends ThemeChangeAwareActivity {
         super.onCreate(savedInstanceState);
 
         Application.onHaveBackend(backend -> {
-            if (backend.getClass() == GoBackend.class) {
+            if (backend instanceof GoBackend) {
                 final Intent intent = GoBackend.VpnService.prepare(this);
                 if (intent != null)
                     startActivityForResult(intent, 0);
diff --git a/app/src/main/java/com/wireguard/android/activity/SettingsActivity.java b/app/src/main/java/com/wireguard/android/activity/SettingsActivity.java
index a8d58e6e..ed2da4dc 100644
--- a/app/src/main/java/com/wireguard/android/activity/SettingsActivity.java
+++ b/app/src/main/java/com/wireguard/android/activity/SettingsActivity.java
@@ -102,7 +102,7 @@ public class SettingsActivity extends ThemeChangeAwareActivity {
             final PreferenceScreen screen = getPreferenceScreen();
             Application.onHaveBackend(backend -> {
                 for (final Preference pref : wgQuickOnlyPrefs) {
-                    if (backend.getClass() == WgQuickBackend.class)
+                    if (backend instanceof WgQuickBackend)
                         pref.setVisible(true);
                     else
                         screen.removePreference(pref);