diff --git a/dev/tests/functional/tests/app/Magento/Sales/Test/Constraint/AssertCaptureInCommentsHistory.php b/dev/tests/functional/tests/app/Magento/Sales/Test/Constraint/AssertCaptureInCommentsHistory.php
index 246f440eb04f93b2fde14ce58d6b07e9a48a0da2..cfaf95bbdeb1a285fc1dafd180d3cac863a6c909 100644
--- a/dev/tests/functional/tests/app/Magento/Sales/Test/Constraint/AssertCaptureInCommentsHistory.php
+++ b/dev/tests/functional/tests/app/Magento/Sales/Test/Constraint/AssertCaptureInCommentsHistory.php
@@ -47,6 +47,7 @@ class AssertCaptureInCommentsHistory extends AbstractConstraint
                 unset($comments[$key]);
             }
         }
+        $comments = array_values($comments);
 
         foreach ($capturedPrices as $key => $capturedPrice) {
             \PHPUnit_Framework_Assert::assertRegExp(