diff --git a/tests/phpunit/tests/functions/getStatusHeaderDesc.php b/tests/phpunit/tests/functions/getStatusHeaderDesc.php
index 09634afc7086..0b4ec3766150 100644
--- a/tests/phpunit/tests/functions/getStatusHeaderDesc.php
+++ b/tests/phpunit/tests/functions/getStatusHeaderDesc.php
@@ -32,7 +32,7 @@ public function _status_strings() {
 			array( 500, 'Internal Server Error' ),
 
 			// A string to make sure that the absint() is working.
-			array( "200", 'OK' ),
+			array( '200', 'OK' ),
 
 			// Not recognized codes return empty strings.
 			array( 9999, '' ),