diff --git a/CoreFoundation/Locale.subproj/CFCalendar.c b/CoreFoundation/Locale.subproj/CFCalendar.c
index 392318a..1c18bc7 100644
--- a/CoreFoundation/Locale.subproj/CFCalendar.c
+++ b/CoreFoundation/Locale.subproj/CFCalendar.c
@@ -272,6 +272,7 @@
 	else if (CFEqual(kCFIslamicCalendar, identifier)) identifier = kCFIslamicCalendar;
 	else if (CFEqual(kCFIslamicCivilCalendar, identifier)) identifier = kCFIslamicCivilCalendar;
 	else if (CFEqual(kCFHebrewCalendar, identifier)) identifier = kCFHebrewCalendar;
+       else if (CFEqual(kCFISO8601Calendar, identifier)) identifier = kCFISO8601Calendar;
 //	else if (CFEqual(kCFChineseCalendar, identifier)) identifier = kCFChineseCalendar;
 	else return NULL;
     }