diff --git a/src/main/java/fr/unix_experience/owncloud_sms/providers/SmsDataProvider.java b/src/main/java/fr/unix_experience/owncloud_sms/providers/SmsDataProvider.java
index ce24b48..04ecbd1 100644
--- a/src/main/java/fr/unix_experience/owncloud_sms/providers/SmsDataProvider.java
+++ b/src/main/java/fr/unix_experience/owncloud_sms/providers/SmsDataProvider.java
@@ -27,7 +27,8 @@ import android.support.annotation.NonNull;
 import fr.unix_experience.owncloud_sms.prefs.OCSMSSharedPrefs;
 
 public class SmsDataProvider extends ContentProvider {
-
+    // WARNING: mandatory
+    public SmsDataProvider() {}
     public SmsDataProvider (Context ct) {
 		super();
 		_context = ct;