diff --git a/test/phpunit/CommonClassTest.class.php b/test/phpunit/CommonClassTest.class.php
index a7c793ed9bf..701dccc6e63 100644
--- a/test/phpunit/CommonClassTest.class.php
+++ b/test/phpunit/CommonClassTest.class.php
@@ -26,8 +26,10 @@
  *      \remarks    Class that extends all PHPunit tests. To share similare code between each test.
  */
 
-// Workaround for false security issue with main.inc.php in tests:
-$_SERVER['PHP_SELF'] = "phpunit";
+// Workaround for false security issue with main.inc.php on Windows in tests:
+if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
+	$_SERVER['PHP_SELF'] = "phpunit";
+}
 
 global $conf,$user,$langs,$db;
 //define('TEST_DB_FORCE_TYPE','mysql');	// This is to force using mysql driver