diff --git a/CHANGED b/CHANGED
index 1b09d2884..201b1996a 100644
--- a/CHANGED
+++ b/CHANGED
@@ -1,5 +1,6 @@
 # Add changes at the top of the list. Keep it in ASCII, and 80-char wide.
 # Do not insert empty lines here, update check depends on it.
+  - bugfix: 57_Calendar: calendar event anymore in modeAlarmed if started
   - feature: 57_Calendar: deal with non-existent end times
   - bugfix: SOMFY: fix non-working on/off-for-timer methods
                    made positioning attributes optional
diff --git a/FHEM/57_Calendar.pm b/FHEM/57_Calendar.pm
index f999e7677..92890e5c2 100644
--- a/FHEM/57_Calendar.pm
+++ b/FHEM/57_Calendar.pm
@@ -615,7 +615,7 @@ sub isAlarmed {
   my ($self,$t) = @_;
   return 0 if($self->isDeleted());
   return $self->{alarm} ?
-    (($self->{alarm}<= $t && $t<= $self->{start}) ? 1 : 0) : 0;
+    (($self->{alarm}<= $t && $t< $self->{start}) ? 1 : 0) : 0;
 }
 
 # return 1 if time is between start time and end time, else 0