diff --git a/dta.zip b/dta.zip
index 9c5bf633f2c8faf433fd4bafa1de71c4148fd29d..b80adcf25a83ba655448c21124b9057bd461a5ba 100644
Binary files a/dta.zip and b/dta.zip differ
diff --git a/dta/utils/backend.php b/dta/classes/backend.php
similarity index 100%
rename from dta/utils/backend.php
rename to dta/classes/backend.php
diff --git a/dta/utils/database.php b/dta/classes/database.php
similarity index 100%
rename from dta/utils/database.php
rename to dta/classes/database.php
diff --git a/dta/utils/view.php b/dta/classes/view.php
similarity index 100%
rename from dta/utils/view.php
rename to dta/classes/view.php
diff --git a/dta/locallib.php b/dta/locallib.php
index da89f78feecfb6725973d87a9fa082b2bf98adb4..844d00697a419936162269a69319bd165655651d 100644
--- a/dta/locallib.php
+++ b/dta/locallib.php
@@ -18,9 +18,9 @@ defined('MOODLE_INTERNAL') || die();
 
 // Import various entity and application logic files.
 require_once($CFG->dirroot . '/mod/assign/submission/dta/models/DtaResult.php');
-require_once($CFG->dirroot . '/mod/assign/submission/dta/utils/database.php');
-require_once($CFG->dirroot . '/mod/assign/submission/dta/utils/backend.php');
-require_once($CFG->dirroot . '/mod/assign/submission/dta/utils/view.php');
+require_once($CFG->dirroot . '/mod/assign/submission/dta/classes/database.php');
+require_once($CFG->dirroot . '/mod/assign/submission/dta/classes/backend.php');
+require_once($CFG->dirroot . '/mod/assign/submission/dta/classes/view.php');
 
 /**
  * library class for DTA submission plugin extending assign submission plugin base class