diff --git a/tests/run-tests b/tests/run-tests
index 8f710753b87..b66d8be20c2 100755
--- a/tests/run-tests
+++ b/tests/run-tests
@@ -922,7 +922,7 @@ More .INIs  : " , (function_exists(\'php_ini_scanned_files\') ? str_replace("\n"
         'session' => array('session.auto_start=0'),
         'tidy' => array('tidy.clean_output=0'),
         'zlib' => array('zlib.output_compression=Off'),
-        'xdebug' => array('xdebug.default_enable=0'),
+        'xdebug' => version_compare(phpversion('xdebug'), '3.0.0', '>=') ? array('xdebug.mode=off') : array('xdebug.default_enable=0'),
         'mbstring' => array('mbstring.func_overload=0'),
     );