Preferences wrong default padding

DropboxConnectorPreference.java

package ch.isageek.tyderion.habittracker.settings;

import android.content.Context;
import android.preference.TwoStatePreference;
import android.util.AttributeSet;

import ch.isageek.tyderion.habittracker.R;

/**
 * Created by tzhnaga1 on 24/04/14.
 */
public class DropboxConnectorPreference extends TwoStatePreference {
    public DropboxConnectorPreference(Context context, AttributeSet attrs) {
        super(context, attrs);
        setSummary(R.string.dropbox_disconnected);
    }

}

Preference-Screen.xml

<?xml version="1.0" encoding="utf-8"?>

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
    <ch.isageek.tyderion.habittracker.settings.DropboxConnectorPreference
        android:key="pref_dropbox"
        android:title="@string/dropbox_title" />
    <Preference
        android:key="test"
        android:title="Blablabla"
        android:summary="Test summary"
        />
    <ListPreference
        android:dependency="pref_dropbox"
        android:key="pref_dropboxSyncSchedule"
        android:title="@string/connection_type"
        android:dialogTitle="Select connection type"
        android:entries="@array/pref_dropboxSyncSchedule"
        android:entryValues="@array/pref_dropboxSyncSchedule_values"
        android:defaultValue="Never" />
</PreferenceScreen>