diff --git a/parsecsv.lib.php b/parsecsv.lib.php
index 4ea9e08..beffd1e 100644
--- a/parsecsv.lib.php
+++ b/parsecsv.lib.php
@@ -730,9 +730,6 @@ class parseCSV {
 
             $this->sort_reverse ? krsort($rows, $sort_type) : ksort($rows, $sort_type);
 
-            // Avoid issues with mixing string and integer keys:
-            $rows = array_values($rows);
-
             if ($this->offset !== null || $this->limit !== null) {
                 $rows = array_slice($rows, ($this->offset === null ? 0 : $this->offset), $this->limit, true);
             }
diff --git a/tests/properties/BaseClass.php b/tests/properties/BaseClass.php
index 4d9c420..1131ac8 100644
--- a/tests/properties/BaseClass.php
+++ b/tests/properties/BaseClass.php
@@ -26,6 +26,6 @@ class BaseClass extends PHPUnit\Framework\TestCase {
         $actual = array_map(function ($row) {
             return $row['title'];
         }, $this->csv->data);
-        $this->assertEquals($expected, $actual);
+        $this->assertEquals($expected, array_values($actual));
     }
 }