diff --git a/ext/date/tests/bug33532.phpt b/ext/date/tests/bug33532.phpt
index 336285123a0..148630855d1 100644
--- a/ext/date/tests/bug33532.phpt
+++ b/ext/date/tests/bug33532.phpt
@@ -22,6 +22,7 @@ print "datestr  " . date ("H:i:s A F j Y T", $tStamp) . "\n";
 
 print "\nSetting TZ\n";
 date_default_timezone_set('Australia/Sydney');
+putenv("TZ=Australia/Sydney");
 $input = "10:00:00 AM July 1 2005";
 print "input    " . $input . "\n";
 $tStamp = strtotime($input);