diff --git a/lib/modules/Calendar.pmod/TimeRanges.pmod b/lib/modules/Calendar.pmod/TimeRanges.pmod
index 63ddde4fb993614f030cb252a96ec5f6c1fd3487..edbcb2a6f88222fcddfae6240639ccf9ba8b5f77 100644
--- a/lib/modules/Calendar.pmod/TimeRanges.pmod
+++ b/lib/modules/Calendar.pmod/TimeRanges.pmod
@@ -1128,7 +1128,7 @@ class cSuperTimeRange
    TimeRange set_timezone(string|Timezone tz)
    {
 // fixme?
-      return `|(map(parts,"set_timezone",tz));
+      return `|(@map(parts,"set_timezone",tz));
    }
 }