diff --git a/tests/functional/acp_attachments_test.php b/tests/functional/acp_attachments_test.php
index 8b1fb2cc6d..bed79eaaf2 100644
--- a/tests/functional/acp_attachments_test.php
+++ b/tests/functional/acp_attachments_test.php
@@ -82,9 +82,12 @@ class phpbb_functional_acp_attachments_test extends phpbb_functional_test_case
 
 		// Also the file name should be in the first row of the files table
 		$this->assertEquals('valid.jpg', $crawler->filter('span.file-name > a')->text());
-		
+
+		// Get attach id, the link looks similar to ./download/attachment/3
 		$attach_link = $crawler->filter('span.file-name > a')->attr('href');
-		$attach_id = $this->get_parameter_from_link($attach_link, 'id');
+		$matches = [];
+		preg_match('/\/([0-9]+)$/', $attach_link, $matches);
+		$attach_id = (int) $matches[1];
 
 		// Set file time older than 3 hours to consider it orphan
 		$sql = 'UPDATE ' . ATTACHMENTS_TABLE . '