diff --git a/src/Model/Icml/Icml.php b/src/Model/Icml/Icml.php
index 7cb770e..9419b5d 100644
--- a/src/Model/Icml/Icml.php
+++ b/src/Model/Icml/Icml.php
@@ -19,8 +19,7 @@ class Icml
     private $resourceModelProduct;
     private $searchCriteriaBuilder;
     private $productRepository;
-
-    const DIMENSION_FIELDS = ['height', 'length', 'width'];
+    private $dimensionFields = ['height', 'length', 'width'];
 
     public function __construct(
         \Magento\Store\Model\StoreManagerInterface $manager,
@@ -444,7 +443,7 @@ class Icml
      */
     private function checkDimension($attrCode)
     {
-        foreach (self::DIMENSION_FIELDS as $dimensionField) {
+        foreach ($this->dimensionFields as $dimensionField) {
             if (mb_strpos($attrCode, $dimensionField) !== false) {
                 return [$dimensionField => $attrCode];
             }
diff --git a/src/Test/Unit/Block/Frontend/DaemonCollectorTest.php b/src/Test/Unit/Block/Frontend/DaemonCollectorTest.php
index 46aa1ba..a1f9809 100644
--- a/src/Test/Unit/Block/Frontend/DaemonCollectorTest.php
+++ b/src/Test/Unit/Block/Frontend/DaemonCollectorTest.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace Retailcrm\Retailcrm\Test\Unit\Block\Frontend;
+
 class DaemonCollectorTest extends \PHPUnit\Framework\TestCase
 {
     private $unit;