diff --git a/classes/migration/upgrade/PKPv3_3_0UpgradeMigration.php b/classes/migration/upgrade/PKPv3_3_0UpgradeMigration.php
index d6ea5ec75fe..c8398f98051 100755
--- a/classes/migration/upgrade/PKPv3_3_0UpgradeMigration.php
+++ b/classes/migration/upgrade/PKPv3_3_0UpgradeMigration.php
@@ -812,6 +812,10 @@ private function _settingsAsJSON()
                 DB::table($tableName)->where('setting_type', 'object')->get()->each(function ($row) use ($tableName) {
                     $this->_toJSON($row, $tableName, ['plugin_name', 'context_id', 'setting_name'], 'setting_value');
                 });
+            } elseif ($tableName == 'review_form_element_settings') {
+                DB::table('review_form_element_settings')->where('setting_type', 'object')->get()->each(function ($row) {
+                    $this->_toJSON($row, 'review_form_element_settings', ['setting_name', 'locale', 'review_form_element_id'], 'setting_value');
+                });
             } elseif (Schema::hasColumn($tableName, 'setting_type')) {
                 try {
                     $settings = DB::table($tableName, 's')->where('setting_type', 'object')->get(['setting_name', 'setting_value', 's.*']);