diff --git a/framework/helpers/BaseArrayHelper.php b/framework/helpers/BaseArrayHelper.php
index 74ae8730c2a..7f078caa86a 100644
--- a/framework/helpers/BaseArrayHelper.php
+++ b/framework/helpers/BaseArrayHelper.php
@@ -64,7 +64,9 @@ public static function toArray($object, $properties = [], $recursive = true)
         if (is_array($object)) {
             if ($recursive) {
                 foreach ($object as $key => $value) {
-                    if (is_array($value) || is_object($value)) {
+                    if ($value instanceof \UnitEnum) {
+                        $object[$key] = $value->value;
+                    } elseif (is_array($value) || is_object($value)) {
                         $object[$key] = static::toArray($value, $properties, true);
                     }
                 }