diff --git a/app/build.gradle b/app/build.gradle
index 492c62d1e..fc52fa8b3 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -8,7 +8,7 @@ android {
         applicationId "com.topjohnwu.magisk"
         minSdkVersion 21
         targetSdkVersion 27
-        versionCode 70
+        versionCode 71
         versionName "5.4.3"
         ndk {
             moduleName 'zipadjust'
diff --git a/app/src/main/assets/changelog.md b/app/src/main/assets/changelog.md
index fbb699fc2..3758aad90 100644
--- a/app/src/main/assets/changelog.md
+++ b/app/src/main/assets/changelog.md
@@ -1,4 +1,4 @@
-### v5.4.3 (70)
+### v5.4.3 (71)
 - Fix dynamic resource loading, should prevent crashing when checking SafetyNet
 - Update SignAPK to use very little RAM, should expand old device support
 - Support settings migration after hiding Magisk Manager
diff --git a/app/src/main/java/com/topjohnwu/magisk/SettingsActivity.java b/app/src/main/java/com/topjohnwu/magisk/SettingsActivity.java
index 657cbcdbd..95d339e37 100644
--- a/app/src/main/java/com/topjohnwu/magisk/SettingsActivity.java
+++ b/app/src/main/java/com/topjohnwu/magisk/SettingsActivity.java
@@ -11,16 +11,16 @@ import android.preference.PreferenceFragment;
 import android.preference.PreferenceScreen;
 import android.preference.SwitchPreference;
 import android.support.v7.app.ActionBar;
+import android.support.v7.app.AlertDialog;
 import android.support.v7.widget.Toolbar;
-import android.text.InputType;
+import android.view.LayoutInflater;
+import android.view.View;
 import android.widget.EditText;
-import android.widget.LinearLayout;
 import android.widget.Toast;
 
 import com.topjohnwu.magisk.asyncs.CheckUpdates;
 import com.topjohnwu.magisk.asyncs.HideManager;
 import com.topjohnwu.magisk.components.Activity;
-import com.topjohnwu.magisk.components.AlertDialogBuilder;
 import com.topjohnwu.magisk.utils.Const;
 import com.topjohnwu.magisk.utils.Shell;
 import com.topjohnwu.magisk.utils.Topic;
@@ -116,21 +116,15 @@ public class SettingsActivity extends Activity implements Topic.Subscriber {
             updateChannel.setOnPreferenceChangeListener((pref, o) -> {
                 mm.updateChannel = Integer.parseInt((String) o);
                 if (mm.updateChannel == Const.Value.CUSTOM_CHANNEL) {
-                    LinearLayout layout = new LinearLayout(getActivity());
-                    EditText url = new EditText(getActivity());
-                    url.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_URI);
+                    View v = LayoutInflater.from(getActivity()).inflate(R.layout.custom_channel_dialog, null);
+                    EditText url = v.findViewById(R.id.custom_url);
                     url.setText(mm.customChannelUrl);
-                    layout.setOrientation(LinearLayout.VERTICAL);
-                    layout.addView(url);
-                    LinearLayout.LayoutParams params = (LinearLayout.LayoutParams) url.getLayoutParams();
-                    params.setMargins(Utils.dpInPx(15), 0, Utils.dpInPx(15), 0);
-                    new AlertDialogBuilder(getActivity())
+                    new AlertDialog.Builder(getActivity())
                         .setTitle(R.string.settings_update_custom)
-                        .setMessage(R.string.settings_update_custom_msg)
-                        .setView(layout)
-                        .setPositiveButton(R.string.ok, (d, i) -> {
-                            prefs.edit().putString(Const.Key.CUSTOM_CHANNEL, url.getText().toString()).apply();
-                        })
+                        .setView(v)
+                        .setPositiveButton(R.string.ok, (d, i) ->
+                                prefs.edit().putString(Const.Key.CUSTOM_CHANNEL,
+                                        url.getText().toString()).apply())
                         .setNegativeButton(R.string.close, null)
                         .show();
                 }
diff --git a/app/src/main/res/layout/custom_channel_dialog.xml b/app/src/main/res/layout/custom_channel_dialog.xml
new file mode 100644
index 000000000..601a7144c
--- /dev/null
+++ b/app/src/main/res/layout/custom_channel_dialog.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:paddingBottom="5dp"
+    android:paddingEnd="15dp"
+    android:paddingStart="15dp"
+    android:paddingTop="5dp">
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="5dp"
+        android:labelFor="@id/custom_url"
+        android:text="@string/settings_update_custom_msg"
+        android:textColor="?android:textColorPrimary"
+        android:textAppearance="?android:attr/textAppearanceMedium" />
+
+    <EditText
+        android:id="@+id/custom_url"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:inputType="textUri" />
+</LinearLayout>
\ No newline at end of file