diff --git a/testing/tests/regression-suite/830-Spec-FREEBUSY-1.result b/testing/tests/regression-suite/830-Spec-FREEBUSY-1.result
index 5a76417a..5b3b57d6 100644
--- a/testing/tests/regression-suite/830-Spec-FREEBUSY-1.result
+++ b/testing/tests/regression-suite/830-Spec-FREEBUSY-1.result
@@ -7,7 +7,7 @@ BEGIN:VCALENDAR
 PRODID:-//Catalyst.Net.NZ//NONSGML AWL Calendar//EN
 VERSION:2.0
 BEGIN:VFREEBUSY
-DTSTAMP:20061217T215132Z
+DTSTAMP:yyyymmddThhmmssZ
 DTSTART:20061004T140000Z
 DTEND:20061205T220000Z
 FREEBUSY:20061031T210000/PT1H