diff --git a/.php-cs-fixer.dist.php b/.php-cs-fixer.dist.php
index d197afd5..67707a5e 100644
--- a/.php-cs-fixer.dist.php
+++ b/.php-cs-fixer.dist.php
@@ -45,7 +45,7 @@
     'no_useless_return' => true,
     'no_superfluous_elseif' => true,
     'no_superfluous_phpdoc_tags' => ['allow_mixed' => true, 'remove_inheritdoc' => true],
-    'nullable_type_declaration_for_default_null_value' => ['use_nullable_type_declaration' => true],
+    'nullable_type_declaration_for_default_null_value' => true,
     'ordered_class_elements' => true,
     'ordered_imports' => ['sort_algorithm' => 'alpha', 'imports_order' => ['class', 'function', 'const']],
     'phpdoc_order' => ['order' => ['var', 'param', 'throws', 'return', 'phpstan-var', 'psalm-var', 'phpstan-param', 'psalm-param', 'phpstan-return', 'psalm-return']],
diff --git a/src/Writer/CsvWriterTerminate.php b/src/Writer/CsvWriterTerminate.php
index 6ad6265e..43c26fb0 100644
--- a/src/Writer/CsvWriterTerminate.php
+++ b/src/Writer/CsvWriterTerminate.php
@@ -21,16 +21,16 @@ final class CsvWriterTerminate extends \php_user_filter
     /**
      * @param resource $in
      * @param resource $out
-     * @param int      $rw_consumed
+     * @param int      $consumed
      * @param bool     $closing
      */
-    public function filter($in, $out, &$rw_consumed, $closing): int
+    public function filter($in, $out, &$consumed, $closing): int
     {
         while ($bucket = stream_bucket_make_writeable($in)) {
             if (isset($this->params['terminate'])) {
                 $bucket->data = preg_replace('/([^\r])\n/', '$1'.$this->params['terminate'], $bucket->data);
             }
-            $rw_consumed += $bucket->datalen;
+            $consumed += (int) $bucket->datalen;
             stream_bucket_append($out, $bucket);
         }