diff --git a/src/PhpSpreadsheet/Reader/Html.php b/src/PhpSpreadsheet/Reader/Html.php
index 9d44c8c116..b570fa4abc 100644
--- a/src/PhpSpreadsheet/Reader/Html.php
+++ b/src/PhpSpreadsheet/Reader/Html.php
@@ -554,6 +554,7 @@ public function loadIntoExisting($pFilename, Spreadsheet $spreadsheet)
         $row = 0;
         $column = 'A';
         $content = '';
+        $this->rowspan = [];
         $this->processDomElement($dom, $spreadsheet->getActiveSheet(), $row, $column, $content);
 
         // Return