diff --git a/lib/icinga/checkable-check.cpp b/lib/icinga/checkable-check.cpp
index 0bcc509c2..b76cb94d3 100644
--- a/lib/icinga/checkable-check.cpp
+++ b/lib/icinga/checkable-check.cpp
@@ -290,8 +290,6 @@ void Checkable::ProcessCheckResult(const CheckResult::Ptr& cr, const MessageOrig
 	if (is_volatile && IsStateOK(old_state) && IsStateOK(new_state))
 		send_notification = false; /* Don't send notifications for volatile OK -> OK changes. */
 
-	SetLastInDowntime(in_downtime);
-
 	olock.Unlock();
 
 	if (remove_acknowledgement_comments)
diff --git a/lib/icinga/checkable.ti b/lib/icinga/checkable.ti
index 27a158da4..d7a4d81e6 100644
--- a/lib/icinga/checkable.ti
+++ b/lib/icinga/checkable.ti
@@ -128,7 +128,6 @@ abstract class Checkable : CustomVarObject
 		default {{{ return Application::GetStartTime(); }}}
 	};
 	[state] Timestamp last_state_unreachable;
-	[state] bool last_in_downtime;
 	[state] bool force_next_check;
 	[state] int acknowledgement (AcknowledgementRaw) {
 		default {{{ return AcknowledgementNone; }}}