diff --git a/src/PhpWord/Writer/HTML/Part/Head.php b/src/PhpWord/Writer/HTML/Part/Head.php
index a2541aa4b0..6117f736e3 100644
--- a/src/PhpWord/Writer/HTML/Part/Head.php
+++ b/src/PhpWord/Writer/HTML/Part/Head.php
@@ -101,6 +101,7 @@ private function writeStyles()
             'table' => [
                 'border' => '1px solid black',
                 'border-spacing' => '0px',
+                'border-collapse' => 'collapse',
                 'width ' => '100%',
             ],
             'td' => [