diff --git a/main/inc/lib/sessionmanager.lib.php b/main/inc/lib/sessionmanager.lib.php
index 5ee5ce808d..6171e8e9d3 100755
--- a/main/inc/lib/sessionmanager.lib.php
+++ b/main/inc/lib/sessionmanager.lib.php
@@ -5431,7 +5431,7 @@ class SessionManager
     /**
      * Returns list of a few data from session (name, short description, start date, end date)
      * And the next extra fields
-     * short_description, mode, duration, vacancies, brochure, target, schedule
+     * short_description, mode, human_text_duration, vacancies, brochure, target, schedule
      * from Session category Id.
      * @param int $categoryId
      * @param string $target
@@ -5450,7 +5450,7 @@ class SessionManager
             // Join session field and session field values tables
             $joinTable = $sfTable . ' sf INNER JOIN ' . $sfvTable . ' sfv ON sf.id = sfv.field_id';
             $fieldsArray = array(
-                'short_description', 'mode', 'duration', 'vacancies', 'brochure', 'target', 'schedule'
+                'short_description', 'mode', 'human_text_duration', 'vacancies', 'brochure', 'target', 'schedule'
             );
             // Get the session list from session category and target
             $sessionList = Database::select(
diff --git a/plugin/advancedsubscription/src/HookAdvancedSubscription.php b/plugin/advancedsubscription/src/HookAdvancedSubscription.php
index a8da5861a3..790765d111 100644
--- a/plugin/advancedsubscription/src/HookAdvancedSubscription.php
+++ b/plugin/advancedsubscription/src/HookAdvancedSubscription.php
@@ -77,7 +77,7 @@ class HookAdvancedSubscription extends HookObserver implements
                     'mode' => array('name' => 'mode', 'type' => 'xsd:string'), // session.mode
                     'date_start' => array('name' => 'date_start', 'type' => 'xsd:string'), // session.date_start
                     'date_end' => array('name' => 'date_end', 'type' => 'xsd:string'), // session.date_end
-                    'duration' => array('name' => 'duration', 'type' => 'xsd:string'), // session.duration
+                    'duration' => array('name' => 'duration', 'type' => 'xsd:string'), // session.human_text_duration
                     'vacancies' => array('name' => 'vacancies', 'type' => 'xsd:string'), // session.vacancies
                     'schedule' => array('name' => 'schedule', 'type' => 'xsd:string'), // session.schedule
                 )
diff --git a/tests/scripts/insert_session_fields.php b/tests/scripts/insert_session_fields.php
index b4d4e8ad1f..16a0c62371 100644
--- a/tests/scripts/insert_session_fields.php
+++ b/tests/scripts/insert_session_fields.php
@@ -108,9 +108,9 @@ $isOpenSession->save(array(
 
 $duration = new ExtraField('session');
 $duration->save(array(
-    'field_type' => ExtraField::FIELD_TYPE_INTEGER,
-    'field_variable' => 'duration',
-    'field_display_text' => get_lang('Duration'),
+    'field_type' => ExtraField::FIELD_TYPE_TEXT,
+    'field_variable' => 'human_text_duration',
+    'field_display_text' => get_lang('DurationInWords'),
     'field_visible' => 1,
     'field_changeable' => 1
 ));