diff --git a/lib/icinga/apiactions.cpp b/lib/icinga/apiactions.cpp
index 37f9d8b41..d0ce6d29f 100644
--- a/lib/icinga/apiactions.cpp
+++ b/lib/icinga/apiactions.cpp
@@ -457,7 +457,7 @@ Dictionary::Ptr ApiActions::ScheduleDowntime(const ConfigObject::Ptr& object,
 						<< "Creating downtime for service " << childService->GetName() << " on child host " << childHost->GetName();
 
 					Downtime::Ptr serviceDowntime = Downtime::AddDowntime(childService, author, comment, startTime, endTime,
-						fixed, triggerName, duration, String(), String(), childDowntimeName);
+						fixed, triggerName, duration);
 					String serviceDowntimeName = serviceDowntime->GetName();
 
 					childServiceDowntimes.push_back(new Dictionary({
diff --git a/lib/icinga/scheduleddowntime.cpp b/lib/icinga/scheduleddowntime.cpp
index f01f03bdd..9cd0004f2 100644
--- a/lib/icinga/scheduleddowntime.cpp
+++ b/lib/icinga/scheduleddowntime.cpp
@@ -323,7 +323,7 @@ void ScheduledDowntime::RemoveObsoleteDowntimes()
 			auto configOwnerHash (downtime->GetConfigOwnerHash());
 
 			if (!configOwnerHash.IsEmpty() && configOwnerHash != downtimeOptionsHash)
-				Downtime::RemoveDowntime(downtime->GetName(), false, true);
+				Downtime::RemoveDowntime(downtime->GetName(), true);
 		}
 	}
 }